20423542

素因数分解:

$2^1\times {\mathrm{89}}^1\times {\mathrm{179}}^1\times {\mathrm{641}}^1$

素因数の和:911

約数の個数: 16

約数和(自身を含む): 31201200

約数和(自身を除く): 10777658

約数列:

[1, 2, 89, 178, 179, 358, 641, 1282, 15931, 31862, 57049, 114098, 114739, 229478, 10211771, 20423542]

約数ペア:

[(1, 20423542), (2, 10211771), (89, 229478), (178, 114739), (179, 114098), (358, 57049), (641, 31862), (1282, 15931)]