20686688

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{3457}}^1$

素因数の和:3495

約数の個数: 48

約数和(自身を含む): 47056464

約数和(自身を除く): 26369776

約数列:

[1, 2, 4, 8, 11, 16, 17, 22, 32, 34, 44, 68, 88, 136, 176, 187, 272, 352, 374, 544, 748, 1496, 2992, 3457, 5984, 6914, 13828, 27656, 38027, 55312, 58769, 76054, 110624, 117538, 152108, 235076, 304216, 470152, 608432, 646459, 940304, 1216864, 1292918, 1880608, 2585836, 5171672, 10343344, 20686688]

約数ペア:

[(1, 20686688), (2, 10343344), (4, 5171672), (8, 2585836), (11, 1880608), (16, 1292918), (17, 1216864), (22, 940304), (32, 646459), (34, 608432), (44, 470152), (68, 304216), (88, 235076), (136, 152108), (176, 117538), (187, 110624), (272, 76054), (352, 58769), (374, 55312), (544, 38027), (748, 27656), (1496, 13828), (2992, 6914), (3457, 5984)]