21486870

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{647}}^1$

素因数の和:707

約数の個数: 80

約数和(自身を含む): 59276448

約数和(自身を除く): 37789578

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 41, 45, 54, 81, 82, 90, 123, 135, 162, 205, 246, 270, 369, 405, 410, 615, 647, 738, 810, 1107, 1230, 1294, 1845, 1941, 2214, 3235, 3321, 3690, 3882, 5535, 5823, 6470, 6642, 9705, 11070, 11646, 16605, 17469, 19410, 26527, 29115, 33210, 34938, 52407, 53054, 58230, 79581, 87345, 104814, 132635, 159162, 174690, 238743, 262035, 265270, 397905, 477486, 524070, 716229, 795810, 1193715, 1432458, 2148687, 2387430, 3581145, 4297374, 7162290, 10743435, 21486870]

約数ペア:

[(1, 21486870), (2, 10743435), (3, 7162290), (5, 4297374), (6, 3581145), (9, 2387430), (10, 2148687), (15, 1432458), (18, 1193715), (27, 795810), (30, 716229), (41, 524070), (45, 477486), (54, 397905), (81, 265270), (82, 262035), (90, 238743), (123, 174690), (135, 159162), (162, 132635), (205, 104814), (246, 87345), (270, 79581), (369, 58230), (405, 53054), (410, 52407), (615, 34938), (647, 33210), (738, 29115), (810, 26527), (1107, 19410), (1230, 17469), (1294, 16605), (1845, 11646), (1941, 11070), (2214, 9705), (3235, 6642), (3321, 6470), (3690, 5823), (3882, 5535)]