21561616

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{1499}}^1$

素因数の和:1567

約数の個数: 40

約数和(自身を含む): 44640000

約数和(自身を除く): 23078384

約数列:

[1, 2, 4, 8, 16, 29, 31, 58, 62, 116, 124, 232, 248, 464, 496, 899, 1499, 1798, 2998, 3596, 5996, 7192, 11992, 14384, 23984, 43471, 46469, 86942, 92938, 173884, 185876, 347768, 371752, 695536, 743504, 1347601, 2695202, 5390404, 10780808, 21561616]

約数ペア:

[(1, 21561616), (2, 10780808), (4, 5390404), (8, 2695202), (16, 1347601), (29, 743504), (31, 695536), (58, 371752), (62, 347768), (116, 185876), (124, 173884), (232, 92938), (248, 86942), (464, 46469), (496, 43471), (899, 23984), (1499, 14384), (1798, 11992), (2998, 7192), (3596, 5996)]