21592090

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{67}}^2$

素因数の和:191

約数の個数: 48

約数和(自身を含む): 43637832

約数和(自身を除く): 22045742

約数列:

[1, 2, 5, 10, 13, 26, 37, 65, 67, 74, 130, 134, 185, 335, 370, 481, 670, 871, 962, 1742, 2405, 2479, 4355, 4489, 4810, 4958, 8710, 8978, 12395, 22445, 24790, 32227, 44890, 58357, 64454, 116714, 161135, 166093, 291785, 322270, 332186, 583570, 830465, 1660930, 2159209, 4318418, 10796045, 21592090]

約数ペア:

[(1, 21592090), (2, 10796045), (5, 4318418), (10, 2159209), (13, 1660930), (26, 830465), (37, 583570), (65, 332186), (67, 322270), (74, 291785), (130, 166093), (134, 161135), (185, 116714), (335, 64454), (370, 58357), (481, 44890), (670, 32227), (871, 24790), (962, 22445), (1742, 12395), (2405, 8978), (2479, 8710), (4355, 4958), (4489, 4810)]