20121664107

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{211}}^1\times {\mathrm{15349}}^1$

素因数の和:15691

約数の個数: 32

約数和(自身を含む): 28636960000

約数和(自身を除く): 8515295893

約数列:

[1, 3, 19, 57, 109, 211, 327, 633, 2071, 4009, 6213, 12027, 15349, 22999, 46047, 68997, 291631, 436981, 874893, 1310943, 1673041, 3238639, 5019123, 9715917, 31787779, 61534141, 95363337, 184602423, 353011651, 1059034953, 6707221369, 20121664107]

約数ペア:

[(1, 20121664107), (3, 6707221369), (19, 1059034953), (57, 353011651), (109, 184602423), (211, 95363337), (327, 61534141), (633, 31787779), (2071, 9715917), (4009, 5019123), (6213, 3238639), (12027, 1673041), (15349, 1310943), (22999, 874893), (46047, 436981), (68997, 291631)]