81759489

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{401}}^1$

素因数の和:510

約数の個数: 48

約数和(自身を含む): 135650880

約数和(自身を除く): 53891391

約数列:

[1, 3, 7, 19, 21, 49, 57, 73, 133, 147, 219, 399, 401, 511, 931, 1203, 1387, 1533, 2793, 2807, 3577, 4161, 7619, 8421, 9709, 10731, 19649, 22857, 29127, 29273, 53333, 58947, 67963, 87819, 159999, 203889, 204911, 373331, 556187, 614733, 1119993, 1434377, 1668561, 3893309, 4303131, 11679927, 27253163, 81759489]

約数ペア:

[(1, 81759489), (3, 27253163), (7, 11679927), (19, 4303131), (21, 3893309), (49, 1668561), (57, 1434377), (73, 1119993), (133, 614733), (147, 556187), (219, 373331), (399, 204911), (401, 203889), (511, 159999), (931, 87819), (1203, 67963), (1387, 58947), (1533, 53333), (2793, 29273), (2807, 29127), (3577, 22857), (4161, 19649), (7619, 10731), (8421, 9709)]