19900388

素因数分解:

$2^2\times {\mathrm{31}}^3\times {\mathrm{167}}^1$

素因数の和:264

約数の個数: 24

約数和(自身を含む): 36201984

約数和(自身を除く): 16301596

約数列:

[1, 2, 4, 31, 62, 124, 167, 334, 668, 961, 1922, 3844, 5177, 10354, 20708, 29791, 59582, 119164, 160487, 320974, 641948, 4975097, 9950194, 19900388]

約数ペア:

[(1, 19900388), (2, 9950194), (4, 4975097), (31, 641948), (62, 320974), (124, 160487), (167, 119164), (334, 59582), (668, 29791), (961, 20708), (1922, 10354), (3844, 5177)]