18991506

素因数分解:

$2^1\times 3^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1\times {\mathrm{409}}^1$

素因数の和:594

約数の個数: 32

約数和(自身を含む): 38966400

約数和(自身を除く): 19974894

約数列:

[1, 2, 3, 6, 71, 109, 142, 213, 218, 327, 409, 426, 654, 818, 1227, 2454, 7739, 15478, 23217, 29039, 44581, 46434, 58078, 87117, 89162, 133743, 174234, 267486, 3165251, 6330502, 9495753, 18991506]

約数ペア:

[(1, 18991506), (2, 9495753), (3, 6330502), (6, 3165251), (71, 267486), (109, 174234), (142, 133743), (213, 89162), (218, 87117), (327, 58078), (409, 46434), (426, 44581), (654, 29039), (818, 23217), (1227, 15478), (2454, 7739)]