21967452

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{643}}^1$

素因数の和:739

約数の個数: 72

約数和(自身を含む): 60713744

約数和(自身を除く): 38746292

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 73, 78, 117, 146, 156, 219, 234, 292, 438, 468, 643, 657, 876, 949, 1286, 1314, 1898, 1929, 2572, 2628, 2847, 3796, 3858, 5694, 5787, 7716, 8359, 8541, 11388, 11574, 16718, 17082, 23148, 25077, 33436, 34164, 46939, 50154, 75231, 93878, 100308, 140817, 150462, 187756, 281634, 300924, 422451, 563268, 610207, 844902, 1220414, 1689804, 1830621, 2440828, 3661242, 5491863, 7322484, 10983726, 21967452]

約数ペア:

[(1, 21967452), (2, 10983726), (3, 7322484), (4, 5491863), (6, 3661242), (9, 2440828), (12, 1830621), (13, 1689804), (18, 1220414), (26, 844902), (36, 610207), (39, 563268), (52, 422451), (73, 300924), (78, 281634), (117, 187756), (146, 150462), (156, 140817), (219, 100308), (234, 93878), (292, 75231), (438, 50154), (468, 46939), (643, 34164), (657, 33436), (876, 25077), (949, 23148), (1286, 17082), (1314, 16718), (1898, 11574), (1929, 11388), (2572, 8541), (2628, 8359), (2847, 7716), (3796, 5787), (3858, 5694)]