20688516

素因数分解:

$2^2\times 3^2\times {\mathrm{61}}^1\times {\mathrm{9421}}^1$

素因数の和:9492

約数の個数: 36

約数和(自身を含む): 53158924

約数和(自身を除く): 32470408

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 61, 122, 183, 244, 366, 549, 732, 1098, 2196, 9421, 18842, 28263, 37684, 56526, 84789, 113052, 169578, 339156, 574681, 1149362, 1724043, 2298724, 3448086, 5172129, 6896172, 10344258, 20688516]

約数ペア:

[(1, 20688516), (2, 10344258), (3, 6896172), (4, 5172129), (6, 3448086), (9, 2298724), (12, 1724043), (18, 1149362), (36, 574681), (61, 339156), (122, 169578), (183, 113052), (244, 84789), (366, 56526), (549, 37684), (732, 28263), (1098, 18842), (2196, 9421)]