21435804

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{281}}^1$

素因数の和:467

約数の個数: 72

約数和(自身を含む): 58919952

約数和(自身を除く): 37484148

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 163, 234, 281, 326, 468, 489, 562, 652, 843, 978, 1124, 1467, 1686, 1956, 2119, 2529, 2934, 3372, 3653, 4238, 5058, 5868, 6357, 7306, 8476, 10116, 10959, 12714, 14612, 19071, 21918, 25428, 32877, 38142, 43836, 45803, 65754, 76284, 91606, 131508, 137409, 183212, 274818, 412227, 549636, 595439, 824454, 1190878, 1648908, 1786317, 2381756, 3572634, 5358951, 7145268, 10717902, 21435804]

約数ペア:

[(1, 21435804), (2, 10717902), (3, 7145268), (4, 5358951), (6, 3572634), (9, 2381756), (12, 1786317), (13, 1648908), (18, 1190878), (26, 824454), (36, 595439), (39, 549636), (52, 412227), (78, 274818), (117, 183212), (156, 137409), (163, 131508), (234, 91606), (281, 76284), (326, 65754), (468, 45803), (489, 43836), (562, 38142), (652, 32877), (843, 25428), (978, 21918), (1124, 19071), (1467, 14612), (1686, 12714), (1956, 10959), (2119, 10116), (2529, 8476), (2934, 7306), (3372, 6357), (3653, 5868), (4238, 5058)]