18667928

素因数分解:

$2^3\times {\mathrm{89}}^1\times {\mathrm{157}}^1\times {\mathrm{167}}^1$

素因数の和:419

約数の個数: 32

約数和(自身を含む): 35834400

約数和(自身を除く): 17166472

約数列:

[1, 2, 4, 8, 89, 157, 167, 178, 314, 334, 356, 628, 668, 712, 1256, 1336, 13973, 14863, 26219, 27946, 29726, 52438, 55892, 59452, 104876, 111784, 118904, 209752, 2333491, 4666982, 9333964, 18667928]

約数ペア:

[(1, 18667928), (2, 9333964), (4, 4666982), (8, 2333491), (89, 209752), (157, 118904), (167, 111784), (178, 104876), (314, 59452), (334, 55892), (356, 52438), (628, 29726), (668, 27946), (712, 26219), (1256, 14863), (1336, 13973)]