21167983011

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{486721}}^1$

素因数の和:486859

約数の個数: 32

約数和(自身を含む): 34265228800

約数和(自身を除く): 13097245789

約数列:

[1, 3, 7, 19, 21, 57, 109, 133, 327, 399, 763, 2071, 2289, 6213, 14497, 43491, 486721, 1460163, 3407047, 9247699, 10221141, 27743097, 53052589, 64733893, 159157767, 194201679, 371368123, 1007999191, 1114104369, 3023997573, 7055994337, 21167983011]

約数ペア:

[(1, 21167983011), (3, 7055994337), (7, 3023997573), (19, 1114104369), (21, 1007999191), (57, 371368123), (109, 194201679), (133, 159157767), (327, 64733893), (399, 53052589), (763, 27743097), (2071, 10221141), (2289, 9247699), (6213, 3407047), (14497, 1460163), (43491, 486721)]