21481698

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{2357}}^1$

素因数の和:2407

約数の個数: 48

約数和(自身を含む): 51611904

約数和(自身を除く): 30130206

約数列:

[1, 2, 3, 6, 7, 14, 21, 31, 42, 49, 62, 93, 98, 147, 186, 217, 294, 434, 651, 1302, 1519, 2357, 3038, 4557, 4714, 7071, 9114, 14142, 16499, 32998, 49497, 73067, 98994, 115493, 146134, 219201, 230986, 346479, 438402, 511469, 692958, 1022938, 1534407, 3068814, 3580283, 7160566, 10740849, 21481698]

約数ペア:

[(1, 21481698), (2, 10740849), (3, 7160566), (6, 3580283), (7, 3068814), (14, 1534407), (21, 1022938), (31, 692958), (42, 511469), (49, 438402), (62, 346479), (93, 230986), (98, 219201), (147, 146134), (186, 115493), (217, 98994), (294, 73067), (434, 49497), (651, 32998), (1302, 16499), (1519, 14142), (2357, 9114), (3038, 7071), (4557, 4714)]