20934765

素因数分解:

$3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{349}}^1$

素因数の和:434

約数の個数: 48

約数和(自身を含む): 38438400

約数和(自身を除く): 17503635

約数列:

[1, 3, 5, 9, 15, 31, 43, 45, 93, 129, 155, 215, 279, 349, 387, 465, 645, 1047, 1333, 1395, 1745, 1935, 3141, 3999, 5235, 6665, 10819, 11997, 15007, 15705, 19995, 32457, 45021, 54095, 59985, 75035, 97371, 135063, 162285, 225105, 465217, 486855, 675315, 1395651, 2326085, 4186953, 6978255, 20934765]

約数ペア:

[(1, 20934765), (3, 6978255), (5, 4186953), (9, 2326085), (15, 1395651), (31, 675315), (43, 486855), (45, 465217), (93, 225105), (129, 162285), (155, 135063), (215, 97371), (279, 75035), (349, 59985), (387, 54095), (465, 45021), (645, 32457), (1047, 19995), (1333, 15705), (1395, 15007), (1745, 11997), (1935, 10819), (3141, 6665), (3999, 5235)]