19554458

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{163}}^1$

素因数の和:243

約数の個数: 64

約数和(自身を含む): 39674880

約数和(自身を除く): 20120422

約数列:

[1, 2, 7, 11, 14, 19, 22, 38, 41, 77, 82, 133, 154, 163, 209, 266, 287, 326, 418, 451, 574, 779, 902, 1141, 1463, 1558, 1793, 2282, 2926, 3097, 3157, 3586, 5453, 6194, 6314, 6683, 8569, 10906, 12551, 13366, 17138, 21679, 25102, 34067, 43358, 46781, 59983, 68134, 73513, 93562, 119966, 126977, 147026, 238469, 253954, 476938, 514591, 888839, 1029182, 1396747, 1777678, 2793494, 9777229, 19554458]

約数ペア:

[(1, 19554458), (2, 9777229), (7, 2793494), (11, 1777678), (14, 1396747), (19, 1029182), (22, 888839), (38, 514591), (41, 476938), (77, 253954), (82, 238469), (133, 147026), (154, 126977), (163, 119966), (209, 93562), (266, 73513), (287, 68134), (326, 59983), (418, 46781), (451, 43358), (574, 34067), (779, 25102), (902, 21679), (1141, 17138), (1463, 13366), (1558, 12551), (1793, 10906), (2282, 8569), (2926, 6683), (3097, 6314), (3157, 6194), (3586, 5453)]