20165842

素因数分解:

$2^1\times {\mathrm{17}}^2\times {\mathrm{139}}^1\times {\mathrm{251}}^1$

素因数の和:426

約数の個数: 24

約数和(自身を含む): 32492880

約数和(自身を除く): 12327038

約数列:

[1, 2, 17, 34, 139, 251, 278, 289, 502, 578, 2363, 4267, 4726, 8534, 34889, 40171, 69778, 72539, 80342, 145078, 593113, 1186226, 10082921, 20165842]

約数ペア:

[(1, 20165842), (2, 10082921), (17, 1186226), (34, 593113), (139, 145078), (251, 80342), (278, 72539), (289, 69778), (502, 40171), (578, 34889), (2363, 8534), (4267, 4726)]