21759780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{503}}^1$

素因数の和:625

約数の個数: 96

約数和(自身を含む): 70447104

約数和(自身を除く): 48687324

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 103, 105, 140, 206, 210, 309, 412, 420, 503, 515, 618, 721, 1006, 1030, 1236, 1442, 1509, 1545, 2012, 2060, 2163, 2515, 2884, 3018, 3090, 3521, 3605, 4326, 5030, 6036, 6180, 7042, 7210, 7545, 8652, 10060, 10563, 10815, 14084, 14420, 15090, 17605, 21126, 21630, 30180, 35210, 42252, 43260, 51809, 52815, 70420, 103618, 105630, 155427, 207236, 211260, 259045, 310854, 362663, 518090, 621708, 725326, 777135, 1036180, 1087989, 1450652, 1554270, 1813315, 2175978, 3108540, 3626630, 4351956, 5439945, 7253260, 10879890, 21759780]

約数ペア:

[(1, 21759780), (2, 10879890), (3, 7253260), (4, 5439945), (5, 4351956), (6, 3626630), (7, 3108540), (10, 2175978), (12, 1813315), (14, 1554270), (15, 1450652), (20, 1087989), (21, 1036180), (28, 777135), (30, 725326), (35, 621708), (42, 518090), (60, 362663), (70, 310854), (84, 259045), (103, 211260), (105, 207236), (140, 155427), (206, 105630), (210, 103618), (309, 70420), (412, 52815), (420, 51809), (503, 43260), (515, 42252), (618, 35210), (721, 30180), (1006, 21630), (1030, 21126), (1236, 17605), (1442, 15090), (1509, 14420), (1545, 14084), (2012, 10815), (2060, 10563), (2163, 10060), (2515, 8652), (2884, 7545), (3018, 7210), (3090, 7042), (3521, 6180), (3605, 6036), (4326, 5030)]