21359196

素因数分解:

$2^2\times 3^2\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{499}}^1$

素因数の和:579

約数の個数: 72

約数和(自身を含む): 57330000

約数和(自身を除く): 35970804

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, 492, 499, 522, 738, 998, 1044, 1189, 1476, 1497, 1996, 2378, 2994, 3567, 4491, 4756, 5988, 7134, 8982, 10701, 14268, 14471, 17964, 20459, 21402, 28942, 40918, 42804, 43413, 57884, 61377, 81836, 86826, 122754, 130239, 173652, 184131, 245508, 260478, 368262, 520956, 593311, 736524, 1186622, 1779933, 2373244, 3559866, 5339799, 7119732, 10679598, 21359196]

約数ペア:

[(1, 21359196), (2, 10679598), (3, 7119732), (4, 5339799), (6, 3559866), (9, 2373244), (12, 1779933), (18, 1186622), (29, 736524), (36, 593311), (41, 520956), (58, 368262), (82, 260478), (87, 245508), (116, 184131), (123, 173652), (164, 130239), (174, 122754), (246, 86826), (261, 81836), (348, 61377), (369, 57884), (492, 43413), (499, 42804), (522, 40918), (738, 28942), (998, 21402), (1044, 20459), (1189, 17964), (1476, 14471), (1497, 14268), (1996, 10701), (2378, 8982), (2994, 7134), (3567, 5988), (4491, 4756)]