21128238

素因数分解:

$2^1\times 3^2\times {\mathrm{53}}^1\times {\mathrm{22147}}^1$

素因数の和:22208

約数の個数: 24

約数和(自身を含む): 46643688

約数和(自身を除く): 25515450

約数列:

[1, 2, 3, 6, 9, 18, 53, 106, 159, 318, 477, 954, 22147, 44294, 66441, 132882, 199323, 398646, 1173791, 2347582, 3521373, 7042746, 10564119, 21128238]

約数ペア:

[(1, 21128238), (2, 10564119), (3, 7042746), (6, 3521373), (9, 2347582), (18, 1173791), (53, 398646), (106, 199323), (159, 132882), (318, 66441), (477, 44294), (954, 22147)]