19188442

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{179}}^1$

素因数の和:251

約数の個数: 64

約数和(自身を含む): 38707200

約数和(自身を除く): 19518758

約数列:

[1, 2, 7, 13, 14, 19, 26, 31, 38, 62, 91, 133, 179, 182, 217, 247, 266, 358, 403, 434, 494, 589, 806, 1178, 1253, 1729, 2327, 2506, 2821, 3401, 3458, 4123, 4654, 5549, 5642, 6802, 7657, 8246, 11098, 15314, 16289, 23807, 32578, 38843, 44213, 47614, 53599, 72137, 77686, 88426, 105431, 107198, 144274, 210862, 309491, 504959, 618982, 738017, 1009918, 1370603, 1476034, 2741206, 9594221, 19188442]

約数ペア:

[(1, 19188442), (2, 9594221), (7, 2741206), (13, 1476034), (14, 1370603), (19, 1009918), (26, 738017), (31, 618982), (38, 504959), (62, 309491), (91, 210862), (133, 144274), (179, 107198), (182, 105431), (217, 88426), (247, 77686), (266, 72137), (358, 53599), (403, 47614), (434, 44213), (494, 38843), (589, 32578), (806, 23807), (1178, 16289), (1253, 15314), (1729, 11098), (2327, 8246), (2506, 7657), (2821, 6802), (3401, 5642), (3458, 5549), (4123, 4654)]