21145291284

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{1909109}}^1$

素因数の和:1909200

約数の個数: 48

約数和(自身を含む): 53882720640

約数和(自身を除く): 32737429356

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 71, 78, 142, 156, 213, 284, 426, 852, 923, 1846, 2769, 3692, 5538, 11076, 1909109, 3818218, 5727327, 7636436, 11454654, 22909308, 24818417, 49636834, 74455251, 99273668, 135546739, 148910502, 271093478, 297821004, 406640217, 542186956, 813280434, 1626560868, 1762107607, 3524215214, 5286322821, 7048430428, 10572645642, 21145291284]

約数ペア:

[(1, 21145291284), (2, 10572645642), (3, 7048430428), (4, 5286322821), (6, 3524215214), (12, 1762107607), (13, 1626560868), (26, 813280434), (39, 542186956), (52, 406640217), (71, 297821004), (78, 271093478), (142, 148910502), (156, 135546739), (213, 99273668), (284, 74455251), (426, 49636834), (852, 24818417), (923, 22909308), (1846, 11454654), (2769, 7636436), (3692, 5727327), (5538, 3818218), (11076, 1909109)]