21786804

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^2\times {\mathrm{3581}}^1$

素因数の和:3617

約数の個数: 54

約数和(自身を含む): 59651046

約数和(自身を除く): 37864242

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 169, 234, 338, 468, 507, 676, 1014, 1521, 2028, 3042, 3581, 6084, 7162, 10743, 14324, 21486, 32229, 42972, 46553, 64458, 93106, 128916, 139659, 186212, 279318, 418977, 558636, 605189, 837954, 1210378, 1675908, 1815567, 2420756, 3631134, 5446701, 7262268, 10893402, 21786804]

約数ペア:

[(1, 21786804), (2, 10893402), (3, 7262268), (4, 5446701), (6, 3631134), (9, 2420756), (12, 1815567), (13, 1675908), (18, 1210378), (26, 837954), (36, 605189), (39, 558636), (52, 418977), (78, 279318), (117, 186212), (156, 139659), (169, 128916), (234, 93106), (338, 64458), (468, 46553), (507, 42972), (676, 32229), (1014, 21486), (1521, 14324), (2028, 10743), (3042, 7162), (3581, 6084)]