21457560

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{178813}}^1$

素因数の和:178827

約数の個数: 32

約数和(自身を含む): 64373040

約数和(自身を除く): 42915480

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 178813, 357626, 536439, 715252, 894065, 1072878, 1430504, 1788130, 2145756, 2682195, 3576260, 4291512, 5364390, 7152520, 10728780, 21457560]

約数ペア:

[(1, 21457560), (2, 10728780), (3, 7152520), (4, 5364390), (5, 4291512), (6, 3576260), (8, 2682195), (10, 2145756), (12, 1788130), (15, 1430504), (20, 1072878), (24, 894065), (30, 715252), (40, 536439), (60, 357626), (120, 178813)]