18333328

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{4639}}^1$

素因数の和:4679

約数の個数: 40

約数和(自身を含む): 40275200

約数和(自身を除く): 21941872

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 38, 52, 76, 104, 152, 208, 247, 304, 494, 988, 1976, 3952, 4639, 9278, 18556, 37112, 60307, 74224, 88141, 120614, 176282, 241228, 352564, 482456, 705128, 964912, 1145833, 1410256, 2291666, 4583332, 9166664, 18333328]

約数ペア:

[(1, 18333328), (2, 9166664), (4, 4583332), (8, 2291666), (13, 1410256), (16, 1145833), (19, 964912), (26, 705128), (38, 482456), (52, 352564), (76, 241228), (104, 176282), (152, 120614), (208, 88141), (247, 74224), (304, 60307), (494, 37112), (988, 18556), (1976, 9278), (3952, 4639)]