19038929

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{397}}^1$

素因数の和:465

約数の個数: 32

約数和(自身を含む): 25675776

約数和(自身を除く): 6636847

約数列:

[1, 7, 13, 17, 31, 91, 119, 217, 221, 397, 403, 527, 1547, 2779, 2821, 3689, 5161, 6749, 6851, 12307, 36127, 47243, 47957, 86149, 87737, 159991, 209219, 614159, 1119937, 1464533, 2719847, 19038929]

約数ペア:

[(1, 19038929), (7, 2719847), (13, 1464533), (17, 1119937), (31, 614159), (91, 209219), (119, 159991), (217, 87737), (221, 86149), (397, 47957), (403, 47243), (527, 36127), (1547, 12307), (2779, 6851), (2821, 6749), (3689, 5161)]