19561428

素因数分解:

$2^2\times 3^2\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{457}}^1$

素因数の和:537

約数の個数: 72

約数和(自身を含む): 52514280

約数和(自身を除く): 32952852

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 29, 36, 41, 58, 82, 87, 116, 123, 164, 174, 246, 261, 348, 369, 457, 492, 522, 738, 914, 1044, 1189, 1371, 1476, 1828, 2378, 2742, 3567, 4113, 4756, 5484, 7134, 8226, 10701, 13253, 14268, 16452, 18737, 21402, 26506, 37474, 39759, 42804, 53012, 56211, 74948, 79518, 112422, 119277, 159036, 168633, 224844, 238554, 337266, 477108, 543373, 674532, 1086746, 1630119, 2173492, 3260238, 4890357, 6520476, 9780714, 19561428]

約数ペア:

[(1, 19561428), (2, 9780714), (3, 6520476), (4, 4890357), (6, 3260238), (9, 2173492), (12, 1630119), (18, 1086746), (29, 674532), (36, 543373), (41, 477108), (58, 337266), (82, 238554), (87, 224844), (116, 168633), (123, 159036), (164, 119277), (174, 112422), (246, 79518), (261, 74948), (348, 56211), (369, 53012), (457, 42804), (492, 39759), (522, 37474), (738, 26506), (914, 21402), (1044, 18737), (1189, 16452), (1371, 14268), (1476, 13253), (1828, 10701), (2378, 8226), (2742, 7134), (3567, 5484), (4113, 4756)]