21531036

素因数分解:

$2^2\times 3^1\times {\mathrm{23}}^1\times {\mathrm{181}}^1\times {\mathrm{431}}^1$

素因数の和:642

約数の個数: 48

約数和(自身を含む): 52835328

約数和(自身を除く): 31304292

約数列:

[1, 2, 3, 4, 6, 12, 23, 46, 69, 92, 138, 181, 276, 362, 431, 543, 724, 862, 1086, 1293, 1724, 2172, 2586, 4163, 5172, 8326, 9913, 12489, 16652, 19826, 24978, 29739, 39652, 49956, 59478, 78011, 118956, 156022, 234033, 312044, 468066, 936132, 1794253, 3588506, 5382759, 7177012, 10765518, 21531036]

約数ペア:

[(1, 21531036), (2, 10765518), (3, 7177012), (4, 5382759), (6, 3588506), (12, 1794253), (23, 936132), (46, 468066), (69, 312044), (92, 234033), (138, 156022), (181, 118956), (276, 78011), (362, 59478), (431, 49956), (543, 39652), (724, 29739), (862, 24978), (1086, 19826), (1293, 16652), (1724, 12489), (2172, 9913), (2586, 8326), (4163, 5172)]