19404726

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{101}}^1$

素因数の和:229

約数の個数: 64

約数和(自身を含む): 44416512

約数和(自身を除く): 25011786

約数列:

[1, 2, 3, 6, 11, 22, 33, 41, 66, 71, 82, 101, 123, 142, 202, 213, 246, 303, 426, 451, 606, 781, 902, 1111, 1353, 1562, 2222, 2343, 2706, 2911, 3333, 4141, 4686, 5822, 6666, 7171, 8282, 8733, 12423, 14342, 17466, 21513, 24846, 32021, 43026, 45551, 64042, 78881, 91102, 96063, 136653, 157762, 192126, 236643, 273306, 294011, 473286, 588022, 882033, 1764066, 3234121, 6468242, 9702363, 19404726]

約数ペア:

[(1, 19404726), (2, 9702363), (3, 6468242), (6, 3234121), (11, 1764066), (22, 882033), (33, 588022), (41, 473286), (66, 294011), (71, 273306), (82, 236643), (101, 192126), (123, 157762), (142, 136653), (202, 96063), (213, 91102), (246, 78881), (303, 64042), (426, 45551), (451, 43026), (606, 32021), (781, 24846), (902, 21513), (1111, 17466), (1353, 14342), (1562, 12423), (2222, 8733), (2343, 8282), (2706, 7171), (2911, 6666), (3333, 5822), (4141, 4686)]