18938406968

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{2985247}}^1$

素因数の和:2985327

約数の個数: 32

約数和(自身を含む): 38867928960

約数和(自身を除く): 19929521992

約数列:

[1, 2, 4, 8, 13, 26, 52, 61, 104, 122, 244, 488, 793, 1586, 3172, 6344, 2985247, 5970494, 11940988, 23881976, 38808211, 77616422, 155232844, 182100067, 310465688, 364200134, 728400268, 1456800536, 2367300871, 4734601742, 9469203484, 18938406968]

約数ペア:

[(1, 18938406968), (2, 9469203484), (4, 4734601742), (8, 2367300871), (13, 1456800536), (26, 728400268), (52, 364200134), (61, 310465688), (104, 182100067), (122, 155232844), (244, 77616422), (488, 38808211), (793, 23881976), (1586, 11940988), (3172, 5970494), (6344, 2985247)]