21351876

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19553}}^1$

素因数の和:19580

約数の個数: 48

約数和(自身を含む): 61321344

約数和(自身を除く): 39969468

約数列:

[1, 2, 3, 4, 6, 7, 12, 13, 14, 21, 26, 28, 39, 42, 52, 78, 84, 91, 156, 182, 273, 364, 546, 1092, 19553, 39106, 58659, 78212, 117318, 136871, 234636, 254189, 273742, 410613, 508378, 547484, 762567, 821226, 1016756, 1525134, 1642452, 1779323, 3050268, 3558646, 5337969, 7117292, 10675938, 21351876]

約数ペア:

[(1, 21351876), (2, 10675938), (3, 7117292), (4, 5337969), (6, 3558646), (7, 3050268), (12, 1779323), (13, 1642452), (14, 1525134), (21, 1016756), (26, 821226), (28, 762567), (39, 547484), (42, 508378), (52, 410613), (78, 273742), (84, 254189), (91, 234636), (156, 136871), (182, 117318), (273, 78212), (364, 58659), (546, 39106), (1092, 19553)]