21000258

素因数分解:

$2^1\times 3^2\times {\mathrm{47}}^1\times {\mathrm{103}}^1\times {\mathrm{241}}^1$

素因数の和:399

約数の個数: 48

約数和(自身を含む): 47114496

約数和(自身を除く): 26114238

約数列:

[1, 2, 3, 6, 9, 18, 47, 94, 103, 141, 206, 241, 282, 309, 423, 482, 618, 723, 846, 927, 1446, 1854, 2169, 4338, 4841, 9682, 11327, 14523, 22654, 24823, 29046, 33981, 43569, 49646, 67962, 74469, 87138, 101943, 148938, 203886, 223407, 446814, 1166681, 2333362, 3500043, 7000086, 10500129, 21000258]

約数ペア:

[(1, 21000258), (2, 10500129), (3, 7000086), (6, 3500043), (9, 2333362), (18, 1166681), (47, 446814), (94, 223407), (103, 203886), (141, 148938), (206, 101943), (241, 87138), (282, 74469), (309, 67962), (423, 49646), (482, 43569), (618, 33981), (723, 29046), (846, 24823), (927, 22654), (1446, 14523), (1854, 11327), (2169, 9682), (4338, 4841)]