21000481203

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{1933}}^1\times {\mathrm{5927}}^1$

素因数の和:7923

約数の個数: 32

約数和(自身を含む): 30817253376

約数和(自身を除く): 9816772173

約数列:

[1, 3, 13, 39, 47, 141, 611, 1833, 1933, 5799, 5927, 17781, 25129, 75387, 77051, 90851, 231153, 272553, 278569, 835707, 1181063, 3543189, 3621397, 10864191, 11456891, 34370673, 148939583, 446818749, 538473877, 1615421631, 7000160401, 21000481203]

約数ペア:

[(1, 21000481203), (3, 7000160401), (13, 1615421631), (39, 538473877), (47, 446818749), (141, 148939583), (611, 34370673), (1833, 11456891), (1933, 10864191), (5799, 3621397), (5927, 3543189), (17781, 1181063), (25129, 835707), (75387, 278569), (77051, 272553), (90851, 231153)]