21346240

素因数分解:

$2^6\times 5^1\times {\mathrm{41}}^1\times {\mathrm{1627}}^1$

素因数の和:1685

約数の個数: 56

約数和(自身を含む): 52102512

約数和(自身を除く): 30756272

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 64, 80, 82, 160, 164, 205, 320, 328, 410, 656, 820, 1312, 1627, 1640, 2624, 3254, 3280, 6508, 6560, 8135, 13016, 13120, 16270, 26032, 32540, 52064, 65080, 66707, 104128, 130160, 133414, 260320, 266828, 333535, 520640, 533656, 667070, 1067312, 1334140, 2134624, 2668280, 4269248, 5336560, 10673120, 21346240]

約数ペア:

[(1, 21346240), (2, 10673120), (4, 5336560), (5, 4269248), (8, 2668280), (10, 2134624), (16, 1334140), (20, 1067312), (32, 667070), (40, 533656), (41, 520640), (64, 333535), (80, 266828), (82, 260320), (160, 133414), (164, 130160), (205, 104128), (320, 66707), (328, 65080), (410, 52064), (656, 32540), (820, 26032), (1312, 16270), (1627, 13120), (1640, 13016), (2624, 8135), (3254, 6560), (3280, 6508)]