21831680

素因数分解:

$2^{13}\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1$

素因数の和:85

約数の個数: 112

約数和(自身を含む): 57799224

約数和(自身を除く): 35967544

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 41, 52, 64, 65, 80, 82, 104, 128, 130, 160, 164, 205, 208, 256, 260, 320, 328, 410, 416, 512, 520, 533, 640, 656, 820, 832, 1024, 1040, 1066, 1280, 1312, 1640, 1664, 2048, 2080, 2132, 2560, 2624, 2665, 3280, 3328, 4096, 4160, 4264, 5120, 5248, 5330, 6560, 6656, 8192, 8320, 8528, 10240, 10496, 10660, 13120, 13312, 16640, 17056, 20480, 20992, 21320, 26240, 26624, 33280, 34112, 40960, 41984, 42640, 52480, 53248, 66560, 68224, 83968, 85280, 104960, 106496, 133120, 136448, 167936, 170560, 209920, 266240, 272896, 335872, 341120, 419840, 532480, 545792, 682240, 839680, 1091584, 1364480, 1679360, 2183168, 2728960, 4366336, 5457920, 10915840, 21831680]

約数ペア:

[(1, 21831680), (2, 10915840), (4, 5457920), (5, 4366336), (8, 2728960), (10, 2183168), (13, 1679360), (16, 1364480), (20, 1091584), (26, 839680), (32, 682240), (40, 545792), (41, 532480), (52, 419840), (64, 341120), (65, 335872), (80, 272896), (82, 266240), (104, 209920), (128, 170560), (130, 167936), (160, 136448), (164, 133120), (205, 106496), (208, 104960), (256, 85280), (260, 83968), (320, 68224), (328, 66560), (410, 53248), (416, 52480), (512, 42640), (520, 41984), (533, 40960), (640, 34112), (656, 33280), (820, 26624), (832, 26240), (1024, 21320), (1040, 20992), (1066, 20480), (1280, 17056), (1312, 16640), (1640, 13312), (1664, 13120), (2048, 10660), (2080, 10496), (2132, 10240), (2560, 8528), (2624, 8320), (2665, 8192), (3280, 6656), (3328, 6560), (4096, 5330), (4160, 5248), (4264, 5120)]