20431892

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{797}}^1$

素因数の和:860

約数の個数: 48

約数和(自身を含む): 42230160

約数和(自身を除く): 21798268

約数列:

[1, 2, 4, 13, 17, 26, 29, 34, 52, 58, 68, 116, 221, 377, 442, 493, 754, 797, 884, 986, 1508, 1594, 1972, 3188, 6409, 10361, 12818, 13549, 20722, 23113, 25636, 27098, 41444, 46226, 54196, 92452, 176137, 300469, 352274, 392921, 600938, 704548, 785842, 1201876, 1571684, 5107973, 10215946, 20431892]

約数ペア:

[(1, 20431892), (2, 10215946), (4, 5107973), (13, 1571684), (17, 1201876), (26, 785842), (29, 704548), (34, 600938), (52, 392921), (58, 352274), (68, 300469), (116, 176137), (221, 92452), (377, 54196), (442, 46226), (493, 41444), (754, 27098), (797, 25636), (884, 23113), (986, 20722), (1508, 13549), (1594, 12818), (1972, 10361), (3188, 6409)]