21567014

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{911}}^1$

素因数の和:1028

約数の個数: 32

約数和(自身を含む): 39398400

約数和(自身を除く): 17831386

約数列:

[1, 2, 7, 14, 19, 38, 89, 133, 178, 266, 623, 911, 1246, 1691, 1822, 3382, 6377, 11837, 12754, 17309, 23674, 34618, 81079, 121163, 162158, 242326, 567553, 1135106, 1540501, 3081002, 10783507, 21567014]

約数ペア:

[(1, 21567014), (2, 10783507), (7, 3081002), (14, 1540501), (19, 1135106), (38, 567553), (89, 242326), (133, 162158), (178, 121163), (266, 81079), (623, 34618), (911, 23674), (1246, 17309), (1691, 12754), (1822, 11837), (3382, 6377)]