21371144

素因数分解:

$2^3\times {\mathrm{29}}^1\times {\mathrm{251}}^1\times {\mathrm{367}}^1$

素因数の和:653

約数の個数: 32

約数和(自身を含む): 41731200

約数和(自身を除く): 20360056

約数列:

[1, 2, 4, 8, 29, 58, 116, 232, 251, 367, 502, 734, 1004, 1468, 2008, 2936, 7279, 10643, 14558, 21286, 29116, 42572, 58232, 85144, 92117, 184234, 368468, 736936, 2671393, 5342786, 10685572, 21371144]

約数ペア:

[(1, 21371144), (2, 10685572), (4, 5342786), (8, 2671393), (29, 736936), (58, 368468), (116, 184234), (232, 92117), (251, 85144), (367, 58232), (502, 42572), (734, 29116), (1004, 21286), (1468, 14558), (2008, 10643), (2936, 7279)]