21443786

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{1997}}^1$

素因数の和:2078

約数の個数: 32

約数和(自身を含む): 40279680

約数和(自身を除く): 18835894

約数列:

[1, 2, 7, 13, 14, 26, 59, 91, 118, 182, 413, 767, 826, 1534, 1997, 3994, 5369, 10738, 13979, 25961, 27958, 51922, 117823, 181727, 235646, 363454, 824761, 1531699, 1649522, 3063398, 10721893, 21443786]

約数ペア:

[(1, 21443786), (2, 10721893), (7, 3063398), (13, 1649522), (14, 1531699), (26, 824761), (59, 363454), (91, 235646), (118, 181727), (182, 117823), (413, 51922), (767, 27958), (826, 25961), (1534, 13979), (1997, 10738), (3994, 5369)]