21847040

素因数分解:

$2^{10}\times 5^1\times {\mathrm{17}}^1\times {\mathrm{251}}^1$

素因数の和:293

約数の個数: 88

約数和(自身を含む): 55711152

約数和(自身を除く): 33864112

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 128, 136, 160, 170, 251, 256, 272, 320, 340, 502, 512, 544, 640, 680, 1004, 1024, 1088, 1255, 1280, 1360, 2008, 2176, 2510, 2560, 2720, 4016, 4267, 4352, 5020, 5120, 5440, 8032, 8534, 8704, 10040, 10880, 16064, 17068, 17408, 20080, 21335, 21760, 32128, 34136, 40160, 42670, 43520, 64256, 68272, 80320, 85340, 87040, 128512, 136544, 160640, 170680, 257024, 273088, 321280, 341360, 546176, 642560, 682720, 1092352, 1285120, 1365440, 2184704, 2730880, 4369408, 5461760, 10923520, 21847040]

約数ペア:

[(1, 21847040), (2, 10923520), (4, 5461760), (5, 4369408), (8, 2730880), (10, 2184704), (16, 1365440), (17, 1285120), (20, 1092352), (32, 682720), (34, 642560), (40, 546176), (64, 341360), (68, 321280), (80, 273088), (85, 257024), (128, 170680), (136, 160640), (160, 136544), (170, 128512), (251, 87040), (256, 85340), (272, 80320), (320, 68272), (340, 64256), (502, 43520), (512, 42670), (544, 40160), (640, 34136), (680, 32128), (1004, 21760), (1024, 21335), (1088, 20080), (1255, 17408), (1280, 17068), (1360, 16064), (2008, 10880), (2176, 10040), (2510, 8704), (2560, 8534), (2720, 8032), (4016, 5440), (4267, 5120), (4352, 5020)]