421155

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{191}}^1$

素因数の和:216

約数の個数: 36

約数和(自身を含む): 853632

約数和(自身を除く): 432477

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 49, 63, 105, 147, 191, 245, 315, 441, 573, 735, 955, 1337, 1719, 2205, 2865, 4011, 6685, 8595, 9359, 12033, 20055, 28077, 46795, 60165, 84231, 140385, 421155]

約数ペア:

[(1, 421155), (3, 140385), (5, 84231), (7, 60165), (9, 46795), (15, 28077), (21, 20055), (35, 12033), (45, 9359), (49, 8595), (63, 6685), (105, 4011), (147, 2865), (191, 2205), (245, 1719), (315, 1337), (441, 955), (573, 735)]