19876716

素因数分解:

$2^2\times 3^2\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{241}}^1$

素因数の和:359

約数の個数: 72

約数和(自身を含む): 52852800

約数和(自身を除く): 32976084

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 29, 36, 58, 79, 87, 116, 158, 174, 237, 241, 261, 316, 348, 474, 482, 522, 711, 723, 948, 964, 1044, 1422, 1446, 2169, 2291, 2844, 2892, 4338, 4582, 6873, 6989, 8676, 9164, 13746, 13978, 19039, 20619, 20967, 27492, 27956, 38078, 41238, 41934, 57117, 62901, 76156, 82476, 83868, 114234, 125802, 171351, 228468, 251604, 342702, 552131, 685404, 1104262, 1656393, 2208524, 3312786, 4969179, 6625572, 9938358, 19876716]

約数ペア:

[(1, 19876716), (2, 9938358), (3, 6625572), (4, 4969179), (6, 3312786), (9, 2208524), (12, 1656393), (18, 1104262), (29, 685404), (36, 552131), (58, 342702), (79, 251604), (87, 228468), (116, 171351), (158, 125802), (174, 114234), (237, 83868), (241, 82476), (261, 76156), (316, 62901), (348, 57117), (474, 41934), (482, 41238), (522, 38078), (711, 27956), (723, 27492), (948, 20967), (964, 20619), (1044, 19039), (1422, 13978), (1446, 13746), (2169, 9164), (2291, 8676), (2844, 6989), (2892, 6873), (4338, 4582)]