18726914

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{139}}^1$

素因数の和:266

約数の個数: 32

約数和(自身を含む): 30481920

約数和(自身を除く): 11755006

約数列:

[1, 2, 31, 41, 53, 62, 82, 106, 139, 278, 1271, 1643, 2173, 2542, 3286, 4309, 4346, 5699, 7367, 8618, 11398, 14734, 67363, 134726, 176669, 228377, 302047, 353338, 456754, 604094, 9363457, 18726914]

約数ペア:

[(1, 18726914), (2, 9363457), (31, 604094), (41, 456754), (53, 353338), (62, 302047), (82, 228377), (106, 176669), (139, 134726), (278, 67363), (1271, 14734), (1643, 11398), (2173, 8618), (2542, 7367), (3286, 5699), (4309, 4346)]