201815859

素因数分解:

$3^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{661}}^1$

素因数の和:776

約数の個数: 48

約数和(自身を含む): 328436736

約数和(自身を除く): 126620877

約数列:

[1, 3, 7, 21, 31, 49, 67, 93, 147, 201, 217, 469, 651, 661, 1407, 1519, 1983, 2077, 3283, 4557, 4627, 6231, 9849, 13881, 14539, 20491, 32389, 43617, 44287, 61473, 97167, 101773, 132861, 143437, 305319, 310009, 430311, 930027, 1004059, 1372897, 2170063, 3012177, 4118691, 6510189, 9610279, 28830837, 67271953, 201815859]

約数ペア:

[(1, 201815859), (3, 67271953), (7, 28830837), (21, 9610279), (31, 6510189), (49, 4118691), (67, 3012177), (93, 2170063), (147, 1372897), (201, 1004059), (217, 930027), (469, 430311), (651, 310009), (661, 305319), (1407, 143437), (1519, 132861), (1983, 101773), (2077, 97167), (3283, 61473), (4557, 44287), (4627, 43617), (6231, 32389), (9849, 20491), (13881, 14539)]