19901154

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{127}}^1$

素因数の和:200

約数の個数: 96

約数和(自身を含む): 51480576

約数和(自身を除く): 31579422

約数列:

[1, 2, 3, 6, 7, 13, 14, 21, 26, 39, 41, 42, 49, 78, 82, 91, 98, 123, 127, 147, 182, 246, 254, 273, 287, 294, 381, 533, 546, 574, 637, 762, 861, 889, 1066, 1274, 1599, 1651, 1722, 1778, 1911, 2009, 2667, 3198, 3302, 3731, 3822, 4018, 4953, 5207, 5334, 6027, 6223, 7462, 9906, 10414, 11193, 11557, 12054, 12446, 15621, 18669, 22386, 23114, 26117, 31242, 34671, 36449, 37338, 52234, 67691, 69342, 72898, 78351, 80899, 109347, 135382, 156702, 161798, 203073, 218694, 242697, 255143, 406146, 473837, 485394, 510286, 765429, 947674, 1421511, 1530858, 2843022, 3316859, 6633718, 9950577, 19901154]

約数ペア:

[(1, 19901154), (2, 9950577), (3, 6633718), (6, 3316859), (7, 2843022), (13, 1530858), (14, 1421511), (21, 947674), (26, 765429), (39, 510286), (41, 485394), (42, 473837), (49, 406146), (78, 255143), (82, 242697), (91, 218694), (98, 203073), (123, 161798), (127, 156702), (147, 135382), (182, 109347), (246, 80899), (254, 78351), (273, 72898), (287, 69342), (294, 67691), (381, 52234), (533, 37338), (546, 36449), (574, 34671), (637, 31242), (762, 26117), (861, 23114), (889, 22386), (1066, 18669), (1274, 15621), (1599, 12446), (1651, 12054), (1722, 11557), (1778, 11193), (1911, 10414), (2009, 9906), (2667, 7462), (3198, 6223), (3302, 6027), (3731, 5334), (3822, 5207), (4018, 4953)]