21657706

素因数分解:

$2^1\times 7^3\times {\mathrm{131}}^1\times {\mathrm{241}}^1$

素因数の和:395

約数の個数: 32

約数和(自身を含む): 38332800

約数和(自身を除く): 16675094

約数列:

[1, 2, 7, 14, 49, 98, 131, 241, 262, 343, 482, 686, 917, 1687, 1834, 3374, 6419, 11809, 12838, 23618, 31571, 44933, 63142, 82663, 89866, 165326, 220997, 441994, 1546979, 3093958, 10828853, 21657706]

約数ペア:

[(1, 21657706), (2, 10828853), (7, 3093958), (14, 1546979), (49, 441994), (98, 220997), (131, 165326), (241, 89866), (262, 82663), (343, 63142), (482, 44933), (686, 31571), (917, 23618), (1687, 12838), (1834, 11809), (3374, 6419)]