18995964

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{263}}^1\times {\mathrm{463}}^1$

素因数の和:746

約数の個数: 48

約数和(自身を含む): 48018432

約数和(自身を除く): 29022468

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 263, 463, 526, 789, 926, 1052, 1389, 1578, 1852, 2778, 3156, 3419, 5556, 6019, 6838, 10257, 12038, 13676, 18057, 20514, 24076, 36114, 41028, 72228, 121769, 243538, 365307, 487076, 730614, 1461228, 1582997, 3165994, 4748991, 6331988, 9497982, 18995964]

約数ペア:

[(1, 18995964), (2, 9497982), (3, 6331988), (4, 4748991), (6, 3165994), (12, 1582997), (13, 1461228), (26, 730614), (39, 487076), (52, 365307), (78, 243538), (156, 121769), (263, 72228), (463, 41028), (526, 36114), (789, 24076), (926, 20514), (1052, 18057), (1389, 13676), (1578, 12038), (1852, 10257), (2778, 6838), (3156, 6019), (3419, 5556)]