21284190

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{173}}^1\times {\mathrm{1367}}^1$

素因数の和:1553

約数の個数: 48

約数和(自身を含む): 55699488

約数和(自身を除く): 34415298

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 173, 346, 519, 865, 1038, 1367, 1557, 1730, 2595, 2734, 3114, 4101, 5190, 6835, 7785, 8202, 12303, 13670, 15570, 20505, 24606, 41010, 61515, 123030, 236491, 472982, 709473, 1182455, 1418946, 2128419, 2364910, 3547365, 4256838, 7094730, 10642095, 21284190]

約数ペア:

[(1, 21284190), (2, 10642095), (3, 7094730), (5, 4256838), (6, 3547365), (9, 2364910), (10, 2128419), (15, 1418946), (18, 1182455), (30, 709473), (45, 472982), (90, 236491), (173, 123030), (346, 61515), (519, 41010), (865, 24606), (1038, 20505), (1367, 15570), (1557, 13670), (1730, 12303), (2595, 8202), (2734, 7785), (3114, 6835), (4101, 5190)]