21209952

素因数分解:

$2^5\times 3^1\times {\mathrm{31}}^1\times {\mathrm{7127}}^1$

素因数の和:7171

約数の個数: 48

約数和(自身を含む): 57480192

約数和(自身を除く): 36270240

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 31, 32, 48, 62, 93, 96, 124, 186, 248, 372, 496, 744, 992, 1488, 2976, 7127, 14254, 21381, 28508, 42762, 57016, 85524, 114032, 171048, 220937, 228064, 342096, 441874, 662811, 684192, 883748, 1325622, 1767496, 2651244, 3534992, 5302488, 7069984, 10604976, 21209952]

約数ペア:

[(1, 21209952), (2, 10604976), (3, 7069984), (4, 5302488), (6, 3534992), (8, 2651244), (12, 1767496), (16, 1325622), (24, 883748), (31, 684192), (32, 662811), (48, 441874), (62, 342096), (93, 228064), (96, 220937), (124, 171048), (186, 114032), (248, 85524), (372, 57016), (496, 42762), (744, 28508), (992, 21381), (1488, 14254), (2976, 7127)]