21393234

素因数分解:

$2^1\times 3^7\times {\mathrm{67}}^1\times {\mathrm{73}}^1$

素因数の和:163

約数の個数: 64

約数和(自身を含む): 49514880

約数和(自身を除く): 28121646

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 67, 73, 81, 134, 146, 162, 201, 219, 243, 402, 438, 486, 603, 657, 729, 1206, 1314, 1458, 1809, 1971, 2187, 3618, 3942, 4374, 4891, 5427, 5913, 9782, 10854, 11826, 14673, 16281, 17739, 29346, 32562, 35478, 44019, 48843, 53217, 88038, 97686, 106434, 132057, 146529, 159651, 264114, 293058, 319302, 396171, 792342, 1188513, 2377026, 3565539, 7131078, 10696617, 21393234]

約数ペア:

[(1, 21393234), (2, 10696617), (3, 7131078), (6, 3565539), (9, 2377026), (18, 1188513), (27, 792342), (54, 396171), (67, 319302), (73, 293058), (81, 264114), (134, 159651), (146, 146529), (162, 132057), (201, 106434), (219, 97686), (243, 88038), (402, 53217), (438, 48843), (486, 44019), (603, 35478), (657, 32562), (729, 29346), (1206, 17739), (1314, 16281), (1458, 14673), (1809, 11826), (1971, 10854), (2187, 9782), (3618, 5913), (3942, 5427), (4374, 4891)]