21153886

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{821}}^1\times {\mathrm{991}}^1$

素因数の和:1827

約数の個数: 16

約数和(自身を含む): 34247808

約数和(自身を除く): 13093922

約数列:

[1, 2, 13, 26, 821, 991, 1642, 1982, 10673, 12883, 21346, 25766, 813611, 1627222, 10576943, 21153886]

約数ペア:

[(1, 21153886), (2, 10576943), (13, 1627222), (26, 813611), (821, 25766), (991, 21346), (1642, 12883), (1982, 10673)]