28121886

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{2557}}^1$

素因数の和:2625

約数の個数: 48

約数和(自身を含む): 67040064

約数和(自身を除く): 38918178

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 47, 78, 94, 117, 141, 234, 282, 423, 611, 846, 1222, 1833, 2557, 3666, 5114, 5499, 7671, 10998, 15342, 23013, 33241, 46026, 66482, 99723, 120179, 199446, 240358, 299169, 360537, 598338, 721074, 1081611, 1562327, 2163222, 3124654, 4686981, 9373962, 14060943, 28121886]

約数ペア:

[(1, 28121886), (2, 14060943), (3, 9373962), (6, 4686981), (9, 3124654), (13, 2163222), (18, 1562327), (26, 1081611), (39, 721074), (47, 598338), (78, 360537), (94, 299169), (117, 240358), (141, 199446), (234, 120179), (282, 99723), (423, 66482), (611, 46026), (846, 33241), (1222, 23013), (1833, 15342), (2557, 10998), (3666, 7671), (5114, 5499)]