18754216

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{9491}}^1$

素因数の和:9529

約数の個数: 32

約数和(自身を含む): 39866400

約数和(自身を除く): 21112184

約数列:

[1, 2, 4, 8, 13, 19, 26, 38, 52, 76, 104, 152, 247, 494, 988, 1976, 9491, 18982, 37964, 75928, 123383, 180329, 246766, 360658, 493532, 721316, 987064, 1442632, 2344277, 4688554, 9377108, 18754216]

約数ペア:

[(1, 18754216), (2, 9377108), (4, 4688554), (8, 2344277), (13, 1442632), (19, 987064), (26, 721316), (38, 493532), (52, 360658), (76, 246766), (104, 180329), (152, 123383), (247, 75928), (494, 37964), (988, 18982), (1976, 9491)]