15898491

素因数分解:

$3^3\times 7^2\times {\mathrm{61}}^1\times {\mathrm{197}}^1$

素因数の和:281

約数の個数: 48

約数和(自身を含む): 27989280

約数和(自身を除く): 12090789

約数列:

[1, 3, 7, 9, 21, 27, 49, 61, 63, 147, 183, 189, 197, 427, 441, 549, 591, 1281, 1323, 1379, 1647, 1773, 2989, 3843, 4137, 5319, 8967, 9653, 11529, 12017, 12411, 26901, 28959, 36051, 37233, 80703, 84119, 86877, 108153, 252357, 260631, 324459, 588833, 757071, 1766499, 2271213, 5299497, 15898491]

約数ペア:

[(1, 15898491), (3, 5299497), (7, 2271213), (9, 1766499), (21, 757071), (27, 588833), (49, 324459), (61, 260631), (63, 252357), (147, 108153), (183, 86877), (189, 84119), (197, 80703), (427, 37233), (441, 36051), (549, 28959), (591, 26901), (1281, 12411), (1323, 12017), (1379, 11529), (1647, 9653), (1773, 8967), (2989, 5319), (3843, 4137)]