21378492

素因数分解:

$2^2\times 3^4\times {\mathrm{65983}}^1$

素因数の和:65999

約数の個数: 30

約数和(自身を含む): 55888448

約数和(自身を除く): 34509956

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 162, 324, 65983, 131966, 197949, 263932, 395898, 593847, 791796, 1187694, 1781541, 2375388, 3563082, 5344623, 7126164, 10689246, 21378492]

約数ペア:

[(1, 21378492), (2, 10689246), (3, 7126164), (4, 5344623), (6, 3563082), (9, 2375388), (12, 1781541), (18, 1187694), (27, 791796), (36, 593847), (54, 395898), (81, 263932), (108, 197949), (162, 131966), (324, 65983)]