21545392

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{379}}^1$

素因数の和:434

約数の個数: 80

約数和(自身を含む): 50889600

約数和(自身を除く): 29344208

約数列:

[1, 2, 4, 8, 11, 16, 17, 19, 22, 34, 38, 44, 68, 76, 88, 136, 152, 176, 187, 209, 272, 304, 323, 374, 379, 418, 646, 748, 758, 836, 1292, 1496, 1516, 1672, 2584, 2992, 3032, 3344, 3553, 4169, 5168, 6064, 6443, 7106, 7201, 8338, 12886, 14212, 14402, 16676, 25772, 28424, 28804, 33352, 51544, 56848, 57608, 66704, 70873, 79211, 103088, 115216, 122417, 141746, 158422, 244834, 283492, 316844, 489668, 566984, 633688, 979336, 1133968, 1267376, 1346587, 1958672, 2693174, 5386348, 10772696, 21545392]

約数ペア:

[(1, 21545392), (2, 10772696), (4, 5386348), (8, 2693174), (11, 1958672), (16, 1346587), (17, 1267376), (19, 1133968), (22, 979336), (34, 633688), (38, 566984), (44, 489668), (68, 316844), (76, 283492), (88, 244834), (136, 158422), (152, 141746), (176, 122417), (187, 115216), (209, 103088), (272, 79211), (304, 70873), (323, 66704), (374, 57608), (379, 56848), (418, 51544), (646, 33352), (748, 28804), (758, 28424), (836, 25772), (1292, 16676), (1496, 14402), (1516, 14212), (1672, 12886), (2584, 8338), (2992, 7201), (3032, 7106), (3344, 6443), (3553, 6064), (4169, 5168)]