21756064

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{3253}}^1$

素因数の和:3293

約数の個数: 48

約数和(自身を含む): 49200480

約数和(自身を除く): 27444416

約数列:

[1, 2, 4, 8, 11, 16, 19, 22, 32, 38, 44, 76, 88, 152, 176, 209, 304, 352, 418, 608, 836, 1672, 3253, 3344, 6506, 6688, 13012, 26024, 35783, 52048, 61807, 71566, 104096, 123614, 143132, 247228, 286264, 494456, 572528, 679877, 988912, 1145056, 1359754, 1977824, 2719508, 5439016, 10878032, 21756064]

約数ペア:

[(1, 21756064), (2, 10878032), (4, 5439016), (8, 2719508), (11, 1977824), (16, 1359754), (19, 1145056), (22, 988912), (32, 679877), (38, 572528), (44, 494456), (76, 286264), (88, 247228), (152, 143132), (176, 123614), (209, 104096), (304, 71566), (352, 61807), (418, 52048), (608, 35783), (836, 26024), (1672, 13012), (3253, 6688), (3344, 6506)]