72811791

素因数分解:

$3^7\times {\mathrm{13}}^2\times {\mathrm{197}}^1$

素因数の和:244

約数の個数: 48

約数和(自身を含む): 118847520

約数和(自身を除く): 46035729

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 169, 197, 243, 351, 507, 591, 729, 1053, 1521, 1773, 2187, 2561, 3159, 4563, 5319, 7683, 9477, 13689, 15957, 23049, 28431, 33293, 41067, 47871, 69147, 99879, 123201, 143613, 207441, 299637, 369603, 430839, 622323, 898911, 1866969, 2696733, 5600907, 8090199, 24270597, 72811791]

約数ペア:

[(1, 72811791), (3, 24270597), (9, 8090199), (13, 5600907), (27, 2696733), (39, 1866969), (81, 898911), (117, 622323), (169, 430839), (197, 369603), (243, 299637), (351, 207441), (507, 143613), (591, 123201), (729, 99879), (1053, 69147), (1521, 47871), (1773, 41067), (2187, 33293), (2561, 28431), (3159, 23049), (4563, 15957), (5319, 13689), (7683, 9477)]