13209255

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{557}}^1$

素因数の和:616

約数の個数: 48

約数和(自身を含む): 25069824

約数和(自身を除く): 11860569

約数列:

[1, 3, 5, 9, 15, 17, 31, 45, 51, 85, 93, 153, 155, 255, 279, 465, 527, 557, 765, 1395, 1581, 1671, 2635, 2785, 4743, 5013, 7905, 8355, 9469, 17267, 23715, 25065, 28407, 47345, 51801, 85221, 86335, 142035, 155403, 259005, 293539, 426105, 777015, 880617, 1467695, 2641851, 4403085, 13209255]

約数ペア:

[(1, 13209255), (3, 4403085), (5, 2641851), (9, 1467695), (15, 880617), (17, 777015), (31, 426105), (45, 293539), (51, 259005), (85, 155403), (93, 142035), (153, 86335), (155, 85221), (255, 51801), (279, 47345), (465, 28407), (527, 25065), (557, 23715), (765, 17267), (1395, 9469), (1581, 8355), (1671, 7905), (2635, 5013), (2785, 4743)]