20928252

素因数分解:

$2^2\times 3^1\times {\mathrm{23}}^1\times {\mathrm{191}}^1\times {\mathrm{397}}^1$

素因数の和:618

約数の個数: 48

約数和(自身を含む): 51351552

約数和(自身を除く): 30423300

約数列:

[1, 2, 3, 4, 6, 12, 23, 46, 69, 92, 138, 191, 276, 382, 397, 573, 764, 794, 1146, 1191, 1588, 2292, 2382, 4393, 4764, 8786, 9131, 13179, 17572, 18262, 26358, 27393, 36524, 52716, 54786, 75827, 109572, 151654, 227481, 303308, 454962, 909924, 1744021, 3488042, 5232063, 6976084, 10464126, 20928252]

約数ペア:

[(1, 20928252), (2, 10464126), (3, 6976084), (4, 5232063), (6, 3488042), (12, 1744021), (23, 909924), (46, 454962), (69, 303308), (92, 227481), (138, 151654), (191, 109572), (276, 75827), (382, 54786), (397, 52716), (573, 36524), (764, 27393), (794, 26358), (1146, 18262), (1191, 17572), (1588, 13179), (2292, 9131), (2382, 8786), (4393, 4764)]