21384240

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{89101}}^1$

素因数の和:89117

約数の個数: 40

約数和(自身を含む): 66291888

約数和(自身を除く): 44907648

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 89101, 178202, 267303, 356404, 445505, 534606, 712808, 891010, 1069212, 1336515, 1425616, 1782020, 2138424, 2673030, 3564040, 4276848, 5346060, 7128080, 10692120, 21384240]

約数ペア:

[(1, 21384240), (2, 10692120), (3, 7128080), (4, 5346060), (5, 4276848), (6, 3564040), (8, 2673030), (10, 2138424), (12, 1782020), (15, 1425616), (16, 1336515), (20, 1069212), (24, 891010), (30, 712808), (40, 534606), (48, 445505), (60, 356404), (80, 267303), (120, 178202), (240, 89101)]