18218788

素因数分解:

$2^2\times 7^5\times {\mathrm{271}}^1$

素因数の和:310

約数の個数: 36

約数和(自身を含む): 37333632

約数和(自身を除く): 19114844

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 271, 343, 542, 686, 1084, 1372, 1897, 2401, 3794, 4802, 7588, 9604, 13279, 16807, 26558, 33614, 53116, 67228, 92953, 185906, 371812, 650671, 1301342, 2602684, 4554697, 9109394, 18218788]

約数ペア:

[(1, 18218788), (2, 9109394), (4, 4554697), (7, 2602684), (14, 1301342), (28, 650671), (49, 371812), (98, 185906), (196, 92953), (271, 67228), (343, 53116), (542, 33614), (686, 26558), (1084, 16807), (1372, 13279), (1897, 9604), (2401, 7588), (3794, 4802)]