21756406

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{919}}^1$

素因数の和:1036

約数の個数: 32

約数和(自身を含む): 39744000

約数和(自身を除く): 17987594

約数列:

[1, 2, 7, 14, 19, 38, 89, 133, 178, 266, 623, 919, 1246, 1691, 1838, 3382, 6433, 11837, 12866, 17461, 23674, 34922, 81791, 122227, 163582, 244454, 572537, 1145074, 1554029, 3108058, 10878203, 21756406]

約数ペア:

[(1, 21756406), (2, 10878203), (7, 3108058), (14, 1554029), (19, 1145074), (38, 572537), (89, 244454), (133, 163582), (178, 122227), (266, 81791), (623, 34922), (919, 23674), (1246, 17461), (1691, 12866), (1838, 11837), (3382, 6433)]