21028336

素因数分解:

$2^4\times 7^1\times {\mathrm{191}}^1\times {\mathrm{983}}^1$

素因数の和:1189

約数の個数: 40

約数和(自身を含む): 46854144

約数和(自身を除く): 25825808

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 191, 382, 764, 983, 1337, 1528, 1966, 2674, 3056, 3932, 5348, 6881, 7864, 10696, 13762, 15728, 21392, 27524, 55048, 110096, 187753, 375506, 751012, 1314271, 1502024, 2628542, 3004048, 5257084, 10514168, 21028336]

約数ペア:

[(1, 21028336), (2, 10514168), (4, 5257084), (7, 3004048), (8, 2628542), (14, 1502024), (16, 1314271), (28, 751012), (56, 375506), (112, 187753), (191, 110096), (382, 55048), (764, 27524), (983, 21392), (1337, 15728), (1528, 13762), (1966, 10696), (2674, 7864), (3056, 6881), (3932, 5348)]