18983432

素因数分解:

$2^3\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{739}}^1$

素因数の和:790

約数の個数: 48

約数和(自身を含む): 40626000

約数和(自身を除く): 21642568

約数列:

[1, 2, 4, 8, 13, 19, 26, 38, 52, 76, 104, 152, 169, 247, 338, 494, 676, 739, 988, 1352, 1478, 1976, 2956, 3211, 5912, 6422, 9607, 12844, 14041, 19214, 25688, 28082, 38428, 56164, 76856, 112328, 124891, 182533, 249782, 365066, 499564, 730132, 999128, 1460264, 2372929, 4745858, 9491716, 18983432]

約数ペア:

[(1, 18983432), (2, 9491716), (4, 4745858), (8, 2372929), (13, 1460264), (19, 999128), (26, 730132), (38, 499564), (52, 365066), (76, 249782), (104, 182533), (152, 124891), (169, 112328), (247, 76856), (338, 56164), (494, 38428), (676, 28082), (739, 25688), (988, 19214), (1352, 14041), (1478, 12844), (1976, 9607), (2956, 6422), (3211, 5912)]