21865302

素因数分解:

$2^1\times 3^4\times {\mathrm{71}}^1\times {\mathrm{1901}}^1$

素因数の和:1986

約数の個数: 40

約数和(自身を含む): 49710672

約数和(自身を除く): 27845370

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 71, 81, 142, 162, 213, 426, 639, 1278, 1901, 1917, 3802, 3834, 5703, 5751, 11406, 11502, 17109, 34218, 51327, 102654, 134971, 153981, 269942, 307962, 404913, 809826, 1214739, 2429478, 3644217, 7288434, 10932651, 21865302]

約数ペア:

[(1, 21865302), (2, 10932651), (3, 7288434), (6, 3644217), (9, 2429478), (18, 1214739), (27, 809826), (54, 404913), (71, 307962), (81, 269942), (142, 153981), (162, 134971), (213, 102654), (426, 51327), (639, 34218), (1278, 17109), (1901, 11502), (1917, 11406), (3802, 5751), (3834, 5703)]