21521124

素因数分解:

$2^2\times 3^2\times {\mathrm{37}}^1\times {\mathrm{107}}^1\times {\mathrm{151}}^1$

素因数の和:305

約数の個数: 72

約数和(自身を含む): 56766528

約数和(自身を除く): 35245404

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 37, 74, 107, 111, 148, 151, 214, 222, 302, 321, 333, 428, 444, 453, 604, 642, 666, 906, 963, 1284, 1332, 1359, 1812, 1926, 2718, 3852, 3959, 5436, 5587, 7918, 11174, 11877, 15836, 16157, 16761, 22348, 23754, 32314, 33522, 35631, 47508, 48471, 50283, 64628, 67044, 71262, 96942, 100566, 142524, 145413, 193884, 201132, 290826, 581652, 597809, 1195618, 1793427, 2391236, 3586854, 5380281, 7173708, 10760562, 21521124]

約数ペア:

[(1, 21521124), (2, 10760562), (3, 7173708), (4, 5380281), (6, 3586854), (9, 2391236), (12, 1793427), (18, 1195618), (36, 597809), (37, 581652), (74, 290826), (107, 201132), (111, 193884), (148, 145413), (151, 142524), (214, 100566), (222, 96942), (302, 71262), (321, 67044), (333, 64628), (428, 50283), (444, 48471), (453, 47508), (604, 35631), (642, 33522), (666, 32314), (906, 23754), (963, 22348), (1284, 16761), (1332, 16157), (1359, 15836), (1812, 11877), (1926, 11174), (2718, 7918), (3852, 5587), (3959, 5436)]