20396103

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^2\times {\mathrm{821}}^1$

素因数の和:864

約数の個数: 36

約数和(自身を含む): 34297128

約数和(自身を除く): 13901025

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 147, 169, 273, 507, 637, 821, 1183, 1911, 2463, 3549, 5747, 8281, 10673, 17241, 24843, 32019, 40229, 74711, 120687, 138749, 224133, 416247, 522977, 971243, 1568931, 2913729, 6798701, 20396103]

約数ペア:

[(1, 20396103), (3, 6798701), (7, 2913729), (13, 1568931), (21, 971243), (39, 522977), (49, 416247), (91, 224133), (147, 138749), (169, 120687), (273, 74711), (507, 40229), (637, 32019), (821, 24843), (1183, 17241), (1911, 10673), (2463, 8281), (3549, 5747)]