21015002628

素因数分解:

$2^2\times 3^2\times {\mathrm{37}}^1\times {\mathrm{2141}}^1\times {\mathrm{7369}}^1$

素因数の和:9557

約数の個数: 72

約数和(自身を含む): 54589855320

約数和(自身を除く): 33574852692

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 37, 74, 111, 148, 222, 333, 444, 666, 1332, 2141, 4282, 6423, 7369, 8564, 12846, 14738, 19269, 22107, 25692, 29476, 38538, 44214, 66321, 77076, 79217, 88428, 132642, 158434, 237651, 265284, 272653, 316868, 475302, 545306, 712953, 817959, 950604, 1090612, 1425906, 1635918, 2453877, 2851812, 3271836, 4907754, 9815508, 15777029, 31554058, 47331087, 63108116, 94662174, 141993261, 189324348, 283986522, 567973044, 583750073, 1167500146, 1751250219, 2335000292, 3502500438, 5253750657, 7005000876, 10507501314, 21015002628]

約数ペア:

[(1, 21015002628), (2, 10507501314), (3, 7005000876), (4, 5253750657), (6, 3502500438), (9, 2335000292), (12, 1751250219), (18, 1167500146), (36, 583750073), (37, 567973044), (74, 283986522), (111, 189324348), (148, 141993261), (222, 94662174), (333, 63108116), (444, 47331087), (666, 31554058), (1332, 15777029), (2141, 9815508), (4282, 4907754), (6423, 3271836), (7369, 2851812), (8564, 2453877), (12846, 1635918), (14738, 1425906), (19269, 1090612), (22107, 950604), (25692, 817959), (29476, 712953), (38538, 545306), (44214, 475302), (66321, 316868), (77076, 272653), (79217, 265284), (88428, 237651), (132642, 158434)]