9919228

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{149}}^1$

素因数の和:270

約数の個数: 48

約数和(自身を含む): 20412000

約数和(自身を除く): 10492772

約数列:

[1, 2, 4, 11, 17, 22, 34, 44, 68, 89, 149, 178, 187, 298, 356, 374, 596, 748, 979, 1513, 1639, 1958, 2533, 3026, 3278, 3916, 5066, 6052, 6556, 10132, 13261, 16643, 26522, 27863, 33286, 53044, 55726, 66572, 111452, 145871, 225437, 291742, 450874, 583484, 901748, 2479807, 4959614, 9919228]

約数ペア:

[(1, 9919228), (2, 4959614), (4, 2479807), (11, 901748), (17, 583484), (22, 450874), (34, 291742), (44, 225437), (68, 145871), (89, 111452), (149, 66572), (178, 55726), (187, 53044), (298, 33286), (356, 27863), (374, 26522), (596, 16643), (748, 13261), (979, 10132), (1513, 6556), (1639, 6052), (1958, 5066), (2533, 3916), (3026, 3278)]