21241688

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{7043}}^1$

素因数の和:7091

約数の個数: 32

約数和(自身を含む): 44377200

約数和(自身を除く): 23135512

約数列:

[1, 2, 4, 8, 13, 26, 29, 52, 58, 104, 116, 232, 377, 754, 1508, 3016, 7043, 14086, 28172, 56344, 91559, 183118, 204247, 366236, 408494, 732472, 816988, 1633976, 2655211, 5310422, 10620844, 21241688]

約数ペア:

[(1, 21241688), (2, 10620844), (4, 5310422), (8, 2655211), (13, 1633976), (26, 816988), (29, 732472), (52, 408494), (58, 366236), (104, 204247), (116, 183118), (232, 91559), (377, 56344), (754, 28172), (1508, 14086), (3016, 7043)]