15420938

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{251}}^1$

素因数の和:422

約数の個数: 32

約数和(自身を含む): 26671680

約数和(自身を除く): 11250742

約数列:

[1, 2, 13, 17, 26, 34, 139, 221, 251, 278, 442, 502, 1807, 2363, 3263, 3614, 4267, 4726, 6526, 8534, 30719, 34889, 55471, 61438, 69778, 110942, 453557, 593113, 907114, 1186226, 7710469, 15420938]

約数ペア:

[(1, 15420938), (2, 7710469), (13, 1186226), (17, 907114), (26, 593113), (34, 453557), (139, 110942), (221, 69778), (251, 61438), (278, 55471), (442, 34889), (502, 30719), (1807, 8534), (2363, 6526), (3263, 4726), (3614, 4267)]