21077595

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{11}}^2\times {\mathrm{79}}^1$

素因数の和:126

約数の個数: 108

約数和(自身を含む): 47305440

約数和(自身を除く): 26227845

約数列:

[1, 3, 5, 7, 9, 11, 15, 21, 33, 35, 45, 49, 55, 63, 77, 79, 99, 105, 121, 147, 165, 231, 237, 245, 315, 363, 385, 395, 441, 495, 539, 553, 605, 693, 711, 735, 847, 869, 1089, 1155, 1185, 1617, 1659, 1815, 2205, 2541, 2607, 2695, 2765, 3465, 3555, 3871, 4235, 4345, 4851, 4977, 5445, 5929, 6083, 7623, 7821, 8085, 8295, 9559, 11613, 12705, 13035, 17787, 18249, 19355, 24255, 24885, 28677, 29645, 30415, 34839, 38115, 39105, 42581, 47795, 53361, 54747, 58065, 66913, 86031, 88935, 91245, 127743, 143385, 174195, 200739, 212905, 266805, 273735, 334565, 383229, 430155, 468391, 602217, 638715, 1003695, 1405173, 1916145, 2341955, 3011085, 4215519, 7025865, 21077595]

約数ペア:

[(1, 21077595), (3, 7025865), (5, 4215519), (7, 3011085), (9, 2341955), (11, 1916145), (15, 1405173), (21, 1003695), (33, 638715), (35, 602217), (45, 468391), (49, 430155), (55, 383229), (63, 334565), (77, 273735), (79, 266805), (99, 212905), (105, 200739), (121, 174195), (147, 143385), (165, 127743), (231, 91245), (237, 88935), (245, 86031), (315, 66913), (363, 58065), (385, 54747), (395, 53361), (441, 47795), (495, 42581), (539, 39105), (553, 38115), (605, 34839), (693, 30415), (711, 29645), (735, 28677), (847, 24885), (869, 24255), (1089, 19355), (1155, 18249), (1185, 17787), (1617, 13035), (1659, 12705), (1815, 11613), (2205, 9559), (2541, 8295), (2607, 8085), (2695, 7821), (2765, 7623), (3465, 6083), (3555, 5929), (3871, 5445), (4235, 4977), (4345, 4851)]