21081070

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{181}}^1\times {\mathrm{613}}^1$

素因数の和:820

約数の個数: 32

約数和(自身を含む): 40229280

約数和(自身を除く): 19148210

約数列:

[1, 2, 5, 10, 19, 38, 95, 181, 190, 362, 613, 905, 1226, 1810, 3065, 3439, 6130, 6878, 11647, 17195, 23294, 34390, 58235, 110953, 116470, 221906, 554765, 1109530, 2108107, 4216214, 10540535, 21081070]

約数ペア:

[(1, 21081070), (2, 10540535), (5, 4216214), (10, 2108107), (19, 1109530), (38, 554765), (95, 221906), (181, 116470), (190, 110953), (362, 58235), (613, 34390), (905, 23294), (1226, 17195), (1810, 11647), (3065, 6878), (3439, 6130)]