15928213

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{127}}^1$

素因数の和:217

約数の個数: 32

約数和(自身を含む): 20643840

約数和(自身を除く): 4715627

約数列:

[1, 7, 19, 23, 41, 127, 133, 161, 287, 437, 779, 889, 943, 2413, 2921, 3059, 5207, 5453, 6601, 16891, 17917, 20447, 36449, 55499, 98933, 119761, 125419, 388493, 692531, 838327, 2275459, 15928213]

約数ペア:

[(1, 15928213), (7, 2275459), (19, 838327), (23, 692531), (41, 388493), (127, 125419), (133, 119761), (161, 98933), (287, 55499), (437, 36449), (779, 20447), (889, 17917), (943, 16891), (2413, 6601), (2921, 5453), (3059, 5207)]