42157017

素因数分解:

$3^4\times 7^1\times {\mathrm{149}}^1\times {\mathrm{499}}^1$

素因数の和:667

約数の個数: 40

約数和(自身を含む): 72600000

約数和(自身を除く): 30442983

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 149, 189, 447, 499, 567, 1043, 1341, 1497, 3129, 3493, 4023, 4491, 9387, 10479, 12069, 13473, 28161, 31437, 40419, 74351, 84483, 94311, 223053, 282933, 520457, 669159, 1561371, 2007477, 4684113, 6022431, 14052339, 42157017]

約数ペア:

[(1, 42157017), (3, 14052339), (7, 6022431), (9, 4684113), (21, 2007477), (27, 1561371), (63, 669159), (81, 520457), (149, 282933), (189, 223053), (447, 94311), (499, 84483), (567, 74351), (1043, 40419), (1341, 31437), (1497, 28161), (3129, 13473), (3493, 12069), (4023, 10479), (4491, 9387)]