21520512195

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{15765943}}^1$

素因数の和:15765971

約数の個数: 32

約数和(自身を含む): 42378857472

約数和(自身を除く): 20858345277

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 39, 65, 91, 105, 195, 273, 455, 1365, 15765943, 47297829, 78829715, 110361601, 204957259, 236489145, 331084803, 551808005, 614871777, 1024786295, 1434700813, 1655424015, 3074358885, 4304102439, 7173504065, 21520512195]

約数ペア:

[(1, 21520512195), (3, 7173504065), (5, 4304102439), (7, 3074358885), (13, 1655424015), (15, 1434700813), (21, 1024786295), (35, 614871777), (39, 551808005), (65, 331084803), (91, 236489145), (105, 204957259), (195, 110361601), (273, 78829715), (455, 47297829), (1365, 15765943)]