20455624

素因数分解:

$2^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{21487}}^1$

素因数の和:21517

約数の個数: 32

約数和(自身を含む): 46414080

約数和(自身を除く): 25958456

約数列:

[1, 2, 4, 7, 8, 14, 17, 28, 34, 56, 68, 119, 136, 238, 476, 952, 21487, 42974, 85948, 150409, 171896, 300818, 365279, 601636, 730558, 1203272, 1461116, 2556953, 2922232, 5113906, 10227812, 20455624]

約数ペア:

[(1, 20455624), (2, 10227812), (4, 5113906), (7, 2922232), (8, 2556953), (14, 1461116), (17, 1203272), (28, 730558), (34, 601636), (56, 365279), (68, 300818), (119, 171896), (136, 150409), (238, 85948), (476, 42974), (952, 21487)]