21345168

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{433}}^1$

素因数の和:536

約数の個数: 80

約数和(自身を含む): 60273920

約数和(自身を除く): 38928752

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 39, 48, 52, 78, 79, 104, 156, 158, 208, 237, 312, 316, 433, 474, 624, 632, 866, 948, 1027, 1264, 1299, 1732, 1896, 2054, 2598, 3081, 3464, 3792, 4108, 5196, 5629, 6162, 6928, 8216, 10392, 11258, 12324, 16432, 16887, 20784, 22516, 24648, 33774, 34207, 45032, 49296, 67548, 68414, 90064, 102621, 135096, 136828, 205242, 270192, 273656, 410484, 444691, 547312, 820968, 889382, 1334073, 1641936, 1778764, 2668146, 3557528, 5336292, 7115056, 10672584, 21345168]

約数ペア:

[(1, 21345168), (2, 10672584), (3, 7115056), (4, 5336292), (6, 3557528), (8, 2668146), (12, 1778764), (13, 1641936), (16, 1334073), (24, 889382), (26, 820968), (39, 547312), (48, 444691), (52, 410484), (78, 273656), (79, 270192), (104, 205242), (156, 136828), (158, 135096), (208, 102621), (237, 90064), (312, 68414), (316, 67548), (433, 49296), (474, 45032), (624, 34207), (632, 33774), (866, 24648), (948, 22516), (1027, 20784), (1264, 16887), (1299, 16432), (1732, 12324), (1896, 11258), (2054, 10392), (2598, 8216), (3081, 6928), (3464, 6162), (3792, 5629), (4108, 5196)]