20936115

素因数分解:

$3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{263}}^1$

素因数の和:364

約数の個数: 48

約数和(自身を含む): 38301120

約数和(自身を除く): 17365005

約数列:

[1, 3, 5, 9, 15, 29, 45, 61, 87, 145, 183, 261, 263, 305, 435, 549, 789, 915, 1305, 1315, 1769, 2367, 2745, 3945, 5307, 7627, 8845, 11835, 15921, 16043, 22881, 26535, 38135, 48129, 68643, 79605, 80215, 114405, 144387, 240645, 343215, 465247, 721935, 1395741, 2326235, 4187223, 6978705, 20936115]

約数ペア:

[(1, 20936115), (3, 6978705), (5, 4187223), (9, 2326235), (15, 1395741), (29, 721935), (45, 465247), (61, 343215), (87, 240645), (145, 144387), (183, 114405), (261, 80215), (263, 79605), (305, 68643), (435, 48129), (549, 38135), (789, 26535), (915, 22881), (1305, 16043), (1315, 15921), (1769, 11835), (2367, 8845), (2745, 7627), (3945, 5307)]