21362796

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{6521}}^1$

素因数の和:6551

約数の個数: 72

約数和(自身を含む): 66472224

約数和(自身を除く): 45109428

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 13, 14, 18, 21, 26, 28, 36, 39, 42, 52, 63, 78, 84, 91, 117, 126, 156, 182, 234, 252, 273, 364, 468, 546, 819, 1092, 1638, 3276, 6521, 13042, 19563, 26084, 39126, 45647, 58689, 78252, 84773, 91294, 117378, 136941, 169546, 182588, 234756, 254319, 273882, 339092, 410823, 508638, 547764, 593411, 762957, 821646, 1017276, 1186822, 1525914, 1643292, 1780233, 2373644, 3051828, 3560466, 5340699, 7120932, 10681398, 21362796]

約数ペア:

[(1, 21362796), (2, 10681398), (3, 7120932), (4, 5340699), (6, 3560466), (7, 3051828), (9, 2373644), (12, 1780233), (13, 1643292), (14, 1525914), (18, 1186822), (21, 1017276), (26, 821646), (28, 762957), (36, 593411), (39, 547764), (42, 508638), (52, 410823), (63, 339092), (78, 273882), (84, 254319), (91, 234756), (117, 182588), (126, 169546), (156, 136941), (182, 117378), (234, 91294), (252, 84773), (273, 78252), (364, 58689), (468, 45647), (546, 39126), (819, 26084), (1092, 19563), (1638, 13042), (3276, 6521)]