21201856

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1499}}^1$

素因数の和:1541

約数の個数: 56

約数和(自身を含む): 48006000

約数和(自身を除く): 26804144

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 32, 34, 52, 64, 68, 104, 136, 208, 221, 272, 416, 442, 544, 832, 884, 1088, 1499, 1768, 2998, 3536, 5996, 7072, 11992, 14144, 19487, 23984, 25483, 38974, 47968, 50966, 77948, 95936, 101932, 155896, 203864, 311792, 331279, 407728, 623584, 662558, 815456, 1247168, 1325116, 1630912, 2650232, 5300464, 10600928, 21201856]

約数ペア:

[(1, 21201856), (2, 10600928), (4, 5300464), (8, 2650232), (13, 1630912), (16, 1325116), (17, 1247168), (26, 815456), (32, 662558), (34, 623584), (52, 407728), (64, 331279), (68, 311792), (104, 203864), (136, 155896), (208, 101932), (221, 95936), (272, 77948), (416, 50966), (442, 47968), (544, 38974), (832, 25483), (884, 23984), (1088, 19487), (1499, 14144), (1768, 11992), (2998, 7072), (3536, 5996)]