21593728

素因数分解:

$2^7\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{683}}^1$

素因数の和:729

約数の個数: 64

約数和(自身を含む): 48837600

約数和(自身を除く): 27243872

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 32, 38, 52, 64, 76, 104, 128, 152, 208, 247, 304, 416, 494, 608, 683, 832, 988, 1216, 1366, 1664, 1976, 2432, 2732, 3952, 5464, 7904, 8879, 10928, 12977, 15808, 17758, 21856, 25954, 31616, 35516, 43712, 51908, 71032, 87424, 103816, 142064, 168701, 207632, 284128, 337402, 415264, 568256, 674804, 830528, 1136512, 1349608, 1661056, 2699216, 5398432, 10796864, 21593728]

約数ペア:

[(1, 21593728), (2, 10796864), (4, 5398432), (8, 2699216), (13, 1661056), (16, 1349608), (19, 1136512), (26, 830528), (32, 674804), (38, 568256), (52, 415264), (64, 337402), (76, 284128), (104, 207632), (128, 168701), (152, 142064), (208, 103816), (247, 87424), (304, 71032), (416, 51908), (494, 43712), (608, 35516), (683, 31616), (832, 25954), (988, 21856), (1216, 17758), (1366, 15808), (1664, 12977), (1976, 10928), (2432, 8879), (2732, 7904), (3952, 5464)]