21865260

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{373}}^1\times {\mathrm{977}}^1$

素因数の和:1362

約数の個数: 48

約数和(自身を含む): 61449696

約数和(自身を除く): 39584436

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 373, 746, 977, 1119, 1492, 1865, 1954, 2238, 2931, 3730, 3908, 4476, 4885, 5595, 5862, 7460, 9770, 11190, 11724, 14655, 19540, 22380, 29310, 58620, 364421, 728842, 1093263, 1457684, 1822105, 2186526, 3644210, 4373052, 5466315, 7288420, 10932630, 21865260]

約数ペア:

[(1, 21865260), (2, 10932630), (3, 7288420), (4, 5466315), (5, 4373052), (6, 3644210), (10, 2186526), (12, 1822105), (15, 1457684), (20, 1093263), (30, 728842), (60, 364421), (373, 58620), (746, 29310), (977, 22380), (1119, 19540), (1492, 14655), (1865, 11724), (1954, 11190), (2238, 9770), (2931, 7460), (3730, 5862), (3908, 5595), (4476, 4885)]