21037760

素因数分解:

$2^6\times 5^1\times {\mathrm{29}}^1\times {\mathrm{2267}}^1$

素因数の和:2313

約数の個数: 56

約数和(自身を含む): 51846480

約数和(自身を除く): 30808720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 32, 40, 58, 64, 80, 116, 145, 160, 232, 290, 320, 464, 580, 928, 1160, 1856, 2267, 2320, 4534, 4640, 9068, 9280, 11335, 18136, 22670, 36272, 45340, 65743, 72544, 90680, 131486, 145088, 181360, 262972, 328715, 362720, 525944, 657430, 725440, 1051888, 1314860, 2103776, 2629720, 4207552, 5259440, 10518880, 21037760]

約数ペア:

[(1, 21037760), (2, 10518880), (4, 5259440), (5, 4207552), (8, 2629720), (10, 2103776), (16, 1314860), (20, 1051888), (29, 725440), (32, 657430), (40, 525944), (58, 362720), (64, 328715), (80, 262972), (116, 181360), (145, 145088), (160, 131486), (232, 90680), (290, 72544), (320, 65743), (464, 45340), (580, 36272), (928, 22670), (1160, 18136), (1856, 11335), (2267, 9280), (2320, 9068), (4534, 4640)]