19976524

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{139}}^1$

素因数の和:254

約数の個数: 48

約数和(自身を含む): 38886400

約数和(自身を除く): 18909876

約数列:

[1, 2, 4, 19, 31, 38, 61, 62, 76, 122, 124, 139, 244, 278, 556, 589, 1159, 1178, 1891, 2318, 2356, 2641, 3782, 4309, 4636, 5282, 7564, 8479, 8618, 10564, 16958, 17236, 33916, 35929, 71858, 81871, 143716, 161101, 163742, 262849, 322202, 327484, 525698, 644404, 1051396, 4994131, 9988262, 19976524]

約数ペア:

[(1, 19976524), (2, 9988262), (4, 4994131), (19, 1051396), (31, 644404), (38, 525698), (61, 327484), (62, 322202), (76, 262849), (122, 163742), (124, 161101), (139, 143716), (244, 81871), (278, 71858), (556, 35929), (589, 33916), (1159, 17236), (1178, 16958), (1891, 10564), (2318, 8618), (2356, 8479), (2641, 7564), (3782, 5282), (4309, 4636)]