18436428

素因数分解:

$2^2\times 3^2\times {\mathrm{71}}^1\times {\mathrm{7213}}^1$

素因数の和:7294

約数の個数: 36

約数和(自身を含む): 47266128

約数和(自身を除く): 28829700

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 71, 142, 213, 284, 426, 639, 852, 1278, 2556, 7213, 14426, 21639, 28852, 43278, 64917, 86556, 129834, 259668, 512123, 1024246, 1536369, 2048492, 3072738, 4609107, 6145476, 9218214, 18436428]

約数ペア:

[(1, 18436428), (2, 9218214), (3, 6145476), (4, 4609107), (6, 3072738), (9, 2048492), (12, 1536369), (18, 1024246), (36, 512123), (71, 259668), (142, 129834), (213, 86556), (284, 64917), (426, 43278), (639, 28852), (852, 21639), (1278, 14426), (2556, 7213)]