19708865

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{107}}^1\times {\mathrm{197}}^1$

素因数の和:337

約数の個数: 32

約数和(自身を含む): 27713664

約数和(自身を除く): 8004799

約数列:

[1, 5, 11, 17, 55, 85, 107, 187, 197, 535, 935, 985, 1177, 1819, 2167, 3349, 5885, 9095, 10835, 16745, 20009, 21079, 36839, 100045, 105395, 184195, 231869, 358343, 1159345, 1791715, 3941773, 19708865]

約数ペア:

[(1, 19708865), (5, 3941773), (11, 1791715), (17, 1159345), (55, 358343), (85, 231869), (107, 184195), (187, 105395), (197, 100045), (535, 36839), (935, 21079), (985, 20009), (1177, 16745), (1819, 10835), (2167, 9095), (3349, 5885)]