21392928

素因数分解:

$2^5\times 3^2\times {\mathrm{59}}^1\times {\mathrm{1259}}^1$

素因数の和:1334

約数の個数: 72

約数和(自身を含む): 61916400

約数和(自身を除く): 40523472

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 59, 72, 96, 118, 144, 177, 236, 288, 354, 472, 531, 708, 944, 1062, 1259, 1416, 1888, 2124, 2518, 2832, 3777, 4248, 5036, 5664, 7554, 8496, 10072, 11331, 15108, 16992, 20144, 22662, 30216, 40288, 45324, 60432, 74281, 90648, 120864, 148562, 181296, 222843, 297124, 362592, 445686, 594248, 668529, 891372, 1188496, 1337058, 1782744, 2376992, 2674116, 3565488, 5348232, 7130976, 10696464, 21392928]

約数ペア:

[(1, 21392928), (2, 10696464), (3, 7130976), (4, 5348232), (6, 3565488), (8, 2674116), (9, 2376992), (12, 1782744), (16, 1337058), (18, 1188496), (24, 891372), (32, 668529), (36, 594248), (48, 445686), (59, 362592), (72, 297124), (96, 222843), (118, 181296), (144, 148562), (177, 120864), (236, 90648), (288, 74281), (354, 60432), (472, 45324), (531, 40288), (708, 30216), (944, 22662), (1062, 20144), (1259, 16992), (1416, 15108), (1888, 11331), (2124, 10072), (2518, 8496), (2832, 7554), (3777, 5664), (4248, 5036)]