21145291258

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{239}}^1\times {\mathrm{10343}}^1$

素因数の和:10651

約数の個数: 64

約数和(自身を含む): 40038727680

約数和(自身を除く): 18893436422

約数列:

[1, 2, 7, 13, 14, 26, 47, 91, 94, 182, 239, 329, 478, 611, 658, 1222, 1673, 3107, 3346, 4277, 6214, 8554, 10343, 11233, 20686, 21749, 22466, 43498, 72401, 78631, 134459, 144802, 146029, 157262, 268918, 292058, 486121, 941213, 972242, 1022203, 1882426, 2044406, 2471977, 3402847, 4943954, 6319573, 6805694, 12639146, 17303839, 32135701, 34607678, 44237011, 64271402, 88474022, 116182919, 224949907, 232365838, 449899814, 813280433, 1510377947, 1626560866, 3020755894, 10572645629, 21145291258]

約数ペア:

[(1, 21145291258), (2, 10572645629), (7, 3020755894), (13, 1626560866), (14, 1510377947), (26, 813280433), (47, 449899814), (91, 232365838), (94, 224949907), (182, 116182919), (239, 88474022), (329, 64271402), (478, 44237011), (611, 34607678), (658, 32135701), (1222, 17303839), (1673, 12639146), (3107, 6805694), (3346, 6319573), (4277, 4943954), (6214, 3402847), (8554, 2471977), (10343, 2044406), (11233, 1882426), (20686, 1022203), (21749, 972242), (22466, 941213), (43498, 486121), (72401, 292058), (78631, 268918), (134459, 157262), (144802, 146029)]