19887924

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{149}}^1\times {\mathrm{227}}^1$

素因数の和:397

約数の個数: 72

約数和(自身を含む): 54583200

約数和(自身を除く): 34695276

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 84, 98, 147, 149, 196, 227, 294, 298, 447, 454, 588, 596, 681, 894, 908, 1043, 1362, 1589, 1788, 2086, 2724, 3129, 3178, 4172, 4767, 6258, 6356, 7301, 9534, 11123, 12516, 14602, 19068, 21903, 22246, 29204, 33369, 33823, 43806, 44492, 66738, 67646, 87612, 101469, 133476, 135292, 202938, 236761, 405876, 473522, 710283, 947044, 1420566, 1657327, 2841132, 3314654, 4971981, 6629308, 9943962, 19887924]

約数ペア:

[(1, 19887924), (2, 9943962), (3, 6629308), (4, 4971981), (6, 3314654), (7, 2841132), (12, 1657327), (14, 1420566), (21, 947044), (28, 710283), (42, 473522), (49, 405876), (84, 236761), (98, 202938), (147, 135292), (149, 133476), (196, 101469), (227, 87612), (294, 67646), (298, 66738), (447, 44492), (454, 43806), (588, 33823), (596, 33369), (681, 29204), (894, 22246), (908, 21903), (1043, 19068), (1362, 14602), (1589, 12516), (1788, 11123), (2086, 9534), (2724, 7301), (3129, 6356), (3178, 6258), (4172, 4767)]