19245616

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{1381}}^1$

素因数の和:1469

約数の個数: 40

約数和(自身を含む): 40785584

約数和(自身を除く): 21539968

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 67, 104, 134, 208, 268, 536, 871, 1072, 1381, 1742, 2762, 3484, 5524, 6968, 11048, 13936, 17953, 22096, 35906, 71812, 92527, 143624, 185054, 287248, 370108, 740216, 1202851, 1480432, 2405702, 4811404, 9622808, 19245616]

約数ペア:

[(1, 19245616), (2, 9622808), (4, 4811404), (8, 2405702), (13, 1480432), (16, 1202851), (26, 740216), (52, 370108), (67, 287248), (104, 185054), (134, 143624), (208, 92527), (268, 71812), (536, 35906), (871, 22096), (1072, 17953), (1381, 13936), (1742, 11048), (2762, 6968), (3484, 5524)]