21291245982

素因数分解:

$2^1\times 3^3\times {\mathrm{1663}}^1\times {\mathrm{237091}}^1$

素因数の和:238765

約数の個数: 32

約数和(自身を含む): 47342530560

約数和(自身を除く): 26051284578

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 1663, 3326, 4989, 9978, 14967, 29934, 44901, 89802, 237091, 474182, 711273, 1422546, 2133819, 4267638, 6401457, 12802914, 394282333, 788564666, 1182846999, 2365693998, 3548540997, 7097081994, 10645622991, 21291245982]

約数ペア:

[(1, 21291245982), (2, 10645622991), (3, 7097081994), (6, 3548540997), (9, 2365693998), (18, 1182846999), (27, 788564666), (54, 394282333), (1663, 12802914), (3326, 6401457), (4989, 4267638), (9978, 2133819), (14967, 1422546), (29934, 711273), (44901, 474182), (89802, 237091)]