19997136

素因数分解:

$2^4\times 3^2\times {\mathrm{138869}}^1$

素因数の和:138883

約数の個数: 30

約数和(自身を含む): 55964610

約数和(自身を除く): 35967474

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 138869, 277738, 416607, 555476, 833214, 1110952, 1249821, 1666428, 2221904, 2499642, 3332856, 4999284, 6665712, 9998568, 19997136]

約数ペア:

[(1, 19997136), (2, 9998568), (3, 6665712), (4, 4999284), (6, 3332856), (8, 2499642), (9, 2221904), (12, 1666428), (16, 1249821), (18, 1110952), (24, 833214), (36, 555476), (48, 416607), (72, 277738), (144, 138869)]