21936640

素因数分解:

$2^9\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1$

素因数の和:94

約数の個数: 160

約数和(自身を含む): 61871040

約数和(自身を除く): 39934400

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 19, 20, 22, 32, 38, 40, 41, 44, 55, 64, 76, 80, 82, 88, 95, 110, 128, 152, 160, 164, 176, 190, 205, 209, 220, 256, 304, 320, 328, 352, 380, 410, 418, 440, 451, 512, 608, 640, 656, 704, 760, 779, 820, 836, 880, 902, 1045, 1216, 1280, 1312, 1408, 1520, 1558, 1640, 1672, 1760, 1804, 2090, 2255, 2432, 2560, 2624, 2816, 3040, 3116, 3280, 3344, 3520, 3608, 3895, 4180, 4510, 4864, 5248, 5632, 6080, 6232, 6560, 6688, 7040, 7216, 7790, 8360, 8569, 9020, 9728, 10496, 12160, 12464, 13120, 13376, 14080, 14432, 15580, 16720, 17138, 18040, 20992, 24320, 24928, 26240, 26752, 28160, 28864, 31160, 33440, 34276, 36080, 42845, 48640, 49856, 52480, 53504, 57728, 62320, 66880, 68552, 72160, 85690, 99712, 104960, 107008, 115456, 124640, 133760, 137104, 144320, 171380, 199424, 230912, 249280, 267520, 274208, 288640, 342760, 398848, 498560, 535040, 548416, 577280, 685520, 997120, 1096832, 1154560, 1371040, 1994240, 2193664, 2742080, 4387328, 5484160, 10968320, 21936640]

約数ペア:

[(1, 21936640), (2, 10968320), (4, 5484160), (5, 4387328), (8, 2742080), (10, 2193664), (11, 1994240), (16, 1371040), (19, 1154560), (20, 1096832), (22, 997120), (32, 685520), (38, 577280), (40, 548416), (41, 535040), (44, 498560), (55, 398848), (64, 342760), (76, 288640), (80, 274208), (82, 267520), (88, 249280), (95, 230912), (110, 199424), (128, 171380), (152, 144320), (160, 137104), (164, 133760), (176, 124640), (190, 115456), (205, 107008), (209, 104960), (220, 99712), (256, 85690), (304, 72160), (320, 68552), (328, 66880), (352, 62320), (380, 57728), (410, 53504), (418, 52480), (440, 49856), (451, 48640), (512, 42845), (608, 36080), (640, 34276), (656, 33440), (704, 31160), (760, 28864), (779, 28160), (820, 26752), (836, 26240), (880, 24928), (902, 24320), (1045, 20992), (1216, 18040), (1280, 17138), (1312, 16720), (1408, 15580), (1520, 14432), (1558, 14080), (1640, 13376), (1672, 13120), (1760, 12464), (1804, 12160), (2090, 10496), (2255, 9728), (2432, 9020), (2560, 8569), (2624, 8360), (2816, 7790), (3040, 7216), (3116, 7040), (3280, 6688), (3344, 6560), (3520, 6232), (3608, 6080), (3895, 5632), (4180, 5248), (4510, 4864)]