13121955

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{541}}^1$

素因数の和:577

約数の個数: 72

約数和(自身を含む): 28916784

約数和(自身を除く): 15794829

約数列:

[1, 3, 5, 7, 9, 11, 15, 21, 33, 35, 45, 49, 55, 63, 77, 99, 105, 147, 165, 231, 245, 315, 385, 441, 495, 539, 541, 693, 735, 1155, 1617, 1623, 2205, 2695, 2705, 3465, 3787, 4851, 4869, 5951, 8085, 8115, 11361, 17853, 18935, 24255, 24345, 26509, 29755, 34083, 41657, 53559, 56805, 79527, 89265, 124971, 132545, 170415, 208285, 238581, 267795, 291599, 374913, 397635, 624855, 874797, 1192905, 1457995, 1874565, 2624391, 4373985, 13121955]

約数ペア:

[(1, 13121955), (3, 4373985), (5, 2624391), (7, 1874565), (9, 1457995), (11, 1192905), (15, 874797), (21, 624855), (33, 397635), (35, 374913), (45, 291599), (49, 267795), (55, 238581), (63, 208285), (77, 170415), (99, 132545), (105, 124971), (147, 89265), (165, 79527), (231, 56805), (245, 53559), (315, 41657), (385, 34083), (441, 29755), (495, 26509), (539, 24345), (541, 24255), (693, 18935), (735, 17853), (1155, 11361), (1617, 8115), (1623, 8085), (2205, 5951), (2695, 4869), (2705, 4851), (3465, 3787)]