13221872

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1$

素因数の和:142

約数の個数: 80

約数和(自身を含む): 29521920

約数和(自身を除く): 16300048

約数列:

[1, 2, 4, 8, 16, 19, 23, 31, 38, 46, 61, 62, 76, 92, 122, 124, 152, 184, 244, 248, 304, 368, 437, 488, 496, 589, 713, 874, 976, 1159, 1178, 1403, 1426, 1748, 1891, 2318, 2356, 2806, 2852, 3496, 3782, 4636, 4712, 5612, 5704, 6992, 7564, 9272, 9424, 11224, 11408, 13547, 15128, 18544, 22448, 26657, 27094, 30256, 35929, 43493, 53314, 54188, 71858, 86986, 106628, 108376, 143716, 173972, 213256, 216752, 287432, 347944, 426512, 574864, 695888, 826367, 1652734, 3305468, 6610936, 13221872]

約数ペア:

[(1, 13221872), (2, 6610936), (4, 3305468), (8, 1652734), (16, 826367), (19, 695888), (23, 574864), (31, 426512), (38, 347944), (46, 287432), (61, 216752), (62, 213256), (76, 173972), (92, 143716), (122, 108376), (124, 106628), (152, 86986), (184, 71858), (244, 54188), (248, 53314), (304, 43493), (368, 35929), (437, 30256), (488, 27094), (496, 26657), (589, 22448), (713, 18544), (874, 15128), (976, 13547), (1159, 11408), (1178, 11224), (1403, 9424), (1426, 9272), (1748, 7564), (1891, 6992), (2318, 5704), (2356, 5612), (2806, 4712), (2852, 4636), (3496, 3782)]