21503326

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{29}}^1\times {\mathrm{79}}^1$

素因数の和:161

約数の個数: 48

約数和(自身を含む): 38404800

約数和(自身を除く): 16901474

約数列:

[1, 2, 13, 19, 26, 29, 38, 58, 79, 158, 247, 361, 377, 494, 551, 722, 754, 1027, 1102, 1501, 2054, 2291, 3002, 4582, 4693, 7163, 9386, 10469, 14326, 19513, 20938, 28519, 29783, 39026, 43529, 57038, 59566, 87058, 136097, 272194, 370747, 565877, 741494, 827051, 1131754, 1654102, 10751663, 21503326]

約数ペア:

[(1, 21503326), (2, 10751663), (13, 1654102), (19, 1131754), (26, 827051), (29, 741494), (38, 565877), (58, 370747), (79, 272194), (158, 136097), (247, 87058), (361, 59566), (377, 57038), (494, 43529), (551, 39026), (722, 29783), (754, 28519), (1027, 20938), (1102, 19513), (1501, 14326), (2054, 10469), (2291, 9386), (3002, 7163), (4582, 4693)]