19779705

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{1289}}^1$

素因数の和:1342

約数の個数: 48

約数和(自身を含む): 38638080

約数和(自身を除く): 18858375

約数列:

[1, 3, 5, 9, 11, 15, 31, 33, 45, 55, 93, 99, 155, 165, 279, 341, 465, 495, 1023, 1289, 1395, 1705, 3069, 3867, 5115, 6445, 11601, 14179, 15345, 19335, 39959, 42537, 58005, 70895, 119877, 127611, 199795, 212685, 359631, 439549, 599385, 638055, 1318647, 1798155, 2197745, 3955941, 6593235, 19779705]

約数ペア:

[(1, 19779705), (3, 6593235), (5, 3955941), (9, 2197745), (11, 1798155), (15, 1318647), (31, 638055), (33, 599385), (45, 439549), (55, 359631), (93, 212685), (99, 199795), (155, 127611), (165, 119877), (279, 70895), (341, 58005), (465, 42537), (495, 39959), (1023, 19335), (1289, 15345), (1395, 14179), (1705, 11601), (3069, 6445), (3867, 5115)]