19194992

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{277}}^1$

素因数の和:417

約数の個数: 40

約数和(自身を含む): 38470752

約数和(自身を除く): 19275760

約数列:

[1, 2, 4, 8, 16, 61, 71, 122, 142, 244, 277, 284, 488, 554, 568, 976, 1108, 1136, 2216, 4331, 4432, 8662, 16897, 17324, 19667, 33794, 34648, 39334, 67588, 69296, 78668, 135176, 157336, 270352, 314672, 1199687, 2399374, 4798748, 9597496, 19194992]

約数ペア:

[(1, 19194992), (2, 9597496), (4, 4798748), (8, 2399374), (16, 1199687), (61, 314672), (71, 270352), (122, 157336), (142, 135176), (244, 78668), (277, 69296), (284, 67588), (488, 39334), (554, 34648), (568, 33794), (976, 19667), (1108, 17324), (1136, 16897), (2216, 8662), (4331, 4432)]