20929788

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{3109}}^1$

素因数の和:3147

約数の個数: 72

約数和(自身を含む): 61130160

約数和(自身を除く): 40200372

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 17, 18, 22, 33, 34, 36, 44, 51, 66, 68, 99, 102, 132, 153, 187, 198, 204, 306, 374, 396, 561, 612, 748, 1122, 1683, 2244, 3109, 3366, 6218, 6732, 9327, 12436, 18654, 27981, 34199, 37308, 52853, 55962, 68398, 102597, 105706, 111924, 136796, 158559, 205194, 211412, 307791, 317118, 410388, 475677, 581383, 615582, 634236, 951354, 1162766, 1231164, 1744149, 1902708, 2325532, 3488298, 5232447, 6976596, 10464894, 20929788]

約数ペア:

[(1, 20929788), (2, 10464894), (3, 6976596), (4, 5232447), (6, 3488298), (9, 2325532), (11, 1902708), (12, 1744149), (17, 1231164), (18, 1162766), (22, 951354), (33, 634236), (34, 615582), (36, 581383), (44, 475677), (51, 410388), (66, 317118), (68, 307791), (99, 211412), (102, 205194), (132, 158559), (153, 136796), (187, 111924), (198, 105706), (204, 102597), (306, 68398), (374, 55962), (396, 52853), (561, 37308), (612, 34199), (748, 27981), (1122, 18654), (1683, 12436), (2244, 9327), (3109, 6732), (3366, 6218)]