19977264

素因数分解:

$2^4\times 3^2\times {\mathrm{138731}}^1$

素因数の和:138745

約数の個数: 30

約数和(自身を含む): 55908996

約数和(自身を除く): 35931732

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 138731, 277462, 416193, 554924, 832386, 1109848, 1248579, 1664772, 2219696, 2497158, 3329544, 4994316, 6659088, 9988632, 19977264]

約数ペア:

[(1, 19977264), (2, 9988632), (3, 6659088), (4, 4994316), (6, 3329544), (8, 2497158), (9, 2219696), (12, 1664772), (16, 1248579), (18, 1109848), (24, 832386), (36, 554924), (48, 416193), (72, 277462), (144, 138731)]