21370856

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{3067}}^1$

素因数の和:3153

約数の個数: 32

約数和(自身を含む): 43811040

約数和(自身を除く): 22440184

約数列:

[1, 2, 4, 8, 13, 26, 52, 67, 104, 134, 268, 536, 871, 1742, 3067, 3484, 6134, 6968, 12268, 24536, 39871, 79742, 159484, 205489, 318968, 410978, 821956, 1643912, 2671357, 5342714, 10685428, 21370856]

約数ペア:

[(1, 21370856), (2, 10685428), (4, 5342714), (8, 2671357), (13, 1643912), (26, 821956), (52, 410978), (67, 318968), (104, 205489), (134, 159484), (268, 79742), (536, 39871), (871, 24536), (1742, 12268), (3067, 6968), (3484, 6134)]