21190686

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{41}}^2\times {\mathrm{191}}^1$

素因数の和:289

約数の個数: 48

約数和(自身を含む): 47637504

約数和(自身を除く): 26446818

約数列:

[1, 2, 3, 6, 11, 22, 33, 41, 66, 82, 123, 191, 246, 382, 451, 573, 902, 1146, 1353, 1681, 2101, 2706, 3362, 4202, 5043, 6303, 7831, 10086, 12606, 15662, 18491, 23493, 36982, 46986, 55473, 86141, 110946, 172282, 258423, 321071, 516846, 642142, 963213, 1926426, 3531781, 7063562, 10595343, 21190686]

約数ペア:

[(1, 21190686), (2, 10595343), (3, 7063562), (6, 3531781), (11, 1926426), (22, 963213), (33, 642142), (41, 516846), (66, 321071), (82, 258423), (123, 172282), (191, 110946), (246, 86141), (382, 55473), (451, 46986), (573, 36982), (902, 23493), (1146, 18491), (1353, 15662), (1681, 12606), (2101, 10086), (2706, 7831), (3362, 6303), (4202, 5043)]