21061348

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1$

素因数の和:161

約数の個数: 96

約数和(自身を含む): 49996800

約数和(自身を除く): 28935452

約数列:

[1, 2, 4, 7, 11, 14, 19, 22, 28, 38, 44, 59, 61, 76, 77, 118, 122, 133, 154, 209, 236, 244, 266, 308, 413, 418, 427, 532, 649, 671, 826, 836, 854, 1121, 1159, 1298, 1342, 1463, 1652, 1708, 2242, 2318, 2596, 2684, 2926, 3599, 4484, 4543, 4636, 4697, 5852, 7198, 7847, 8113, 9086, 9394, 12331, 12749, 14396, 15694, 16226, 18172, 18788, 24662, 25193, 25498, 31388, 32452, 39589, 49324, 50386, 50996, 68381, 79178, 86317, 89243, 100772, 136762, 158356, 172634, 178486, 273524, 277123, 345268, 356972, 478667, 554246, 752191, 957334, 1108492, 1504382, 1914668, 3008764, 5265337, 10530674, 21061348]

約数ペア:

[(1, 21061348), (2, 10530674), (4, 5265337), (7, 3008764), (11, 1914668), (14, 1504382), (19, 1108492), (22, 957334), (28, 752191), (38, 554246), (44, 478667), (59, 356972), (61, 345268), (76, 277123), (77, 273524), (118, 178486), (122, 172634), (133, 158356), (154, 136762), (209, 100772), (236, 89243), (244, 86317), (266, 79178), (308, 68381), (413, 50996), (418, 50386), (427, 49324), (532, 39589), (649, 32452), (671, 31388), (826, 25498), (836, 25193), (854, 24662), (1121, 18788), (1159, 18172), (1298, 16226), (1342, 15694), (1463, 14396), (1652, 12749), (1708, 12331), (2242, 9394), (2318, 9086), (2596, 8113), (2684, 7847), (2926, 7198), (3599, 5852), (4484, 4697), (4543, 4636)]