19723496

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{3109}}^1$

素因数の和:3189

約数の個数: 32

約数和(自身を含む): 40492200

約数和(自身を除く): 20768704

約数列:

[1, 2, 4, 8, 13, 26, 52, 61, 104, 122, 244, 488, 793, 1586, 3109, 3172, 6218, 6344, 12436, 24872, 40417, 80834, 161668, 189649, 323336, 379298, 758596, 1517192, 2465437, 4930874, 9861748, 19723496]

約数ペア:

[(1, 19723496), (2, 9861748), (4, 4930874), (8, 2465437), (13, 1517192), (26, 758596), (52, 379298), (61, 323336), (104, 189649), (122, 161668), (244, 80834), (488, 40417), (793, 24872), (1586, 12436), (3109, 6344), (3172, 6218)]