21915480

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{181}}^1\times {\mathrm{1009}}^1$

素因数の和:1204

約数の個数: 64

約数和(自身を含む): 66175200

約数和(自身を除く): 44259720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 181, 362, 543, 724, 905, 1009, 1086, 1448, 1810, 2018, 2172, 2715, 3027, 3620, 4036, 4344, 5045, 5430, 6054, 7240, 8072, 10090, 10860, 12108, 15135, 20180, 21720, 24216, 30270, 40360, 60540, 121080, 182629, 365258, 547887, 730516, 913145, 1095774, 1461032, 1826290, 2191548, 2739435, 3652580, 4383096, 5478870, 7305160, 10957740, 21915480]

約数ペア:

[(1, 21915480), (2, 10957740), (3, 7305160), (4, 5478870), (5, 4383096), (6, 3652580), (8, 2739435), (10, 2191548), (12, 1826290), (15, 1461032), (20, 1095774), (24, 913145), (30, 730516), (40, 547887), (60, 365258), (120, 182629), (181, 121080), (362, 60540), (543, 40360), (724, 30270), (905, 24216), (1009, 21720), (1086, 20180), (1448, 15135), (1810, 12108), (2018, 10860), (2172, 10090), (2715, 8072), (3027, 7240), (3620, 6054), (4036, 5430), (4344, 5045)]