21387120

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{89113}}^1$

素因数の和:89129

約数の個数: 40

約数和(自身を含む): 66300816

約数和(自身を除く): 44913696

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 89113, 178226, 267339, 356452, 445565, 534678, 712904, 891130, 1069356, 1336695, 1425808, 1782260, 2138712, 2673390, 3564520, 4277424, 5346780, 7129040, 10693560, 21387120]

約数ペア:

[(1, 21387120), (2, 10693560), (3, 7129040), (4, 5346780), (5, 4277424), (6, 3564520), (8, 2673390), (10, 2138712), (12, 1782260), (15, 1425808), (16, 1336695), (20, 1069356), (24, 891130), (30, 712904), (40, 534678), (48, 445565), (60, 356452), (80, 267339), (120, 178226), (240, 89113)]