19945584

素因数分解:

$2^4\times 3^2\times {\mathrm{138511}}^1$

素因数の和:138525

約数の個数: 30

約数和(自身を含む): 55820336

約数和(自身を除く): 35874752

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 138511, 277022, 415533, 554044, 831066, 1108088, 1246599, 1662132, 2216176, 2493198, 3324264, 4986396, 6648528, 9972792, 19945584]

約数ペア:

[(1, 19945584), (2, 9972792), (3, 6648528), (4, 4986396), (6, 3324264), (8, 2493198), (9, 2216176), (12, 1662132), (16, 1246599), (18, 1108088), (24, 831066), (36, 554044), (48, 415533), (72, 277022), (144, 138511)]