21851844

素因数分解:

$2^2\times 3^1\times 7^3\times {\mathrm{5309}}^1$

素因数の和:5337

約数の個数: 48

約数和(自身を含む): 59472000

約数和(自身を除く): 37620156

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 84, 98, 147, 196, 294, 343, 588, 686, 1029, 1372, 2058, 4116, 5309, 10618, 15927, 21236, 31854, 37163, 63708, 74326, 111489, 148652, 222978, 260141, 445956, 520282, 780423, 1040564, 1560846, 1820987, 3121692, 3641974, 5462961, 7283948, 10925922, 21851844]

約数ペア:

[(1, 21851844), (2, 10925922), (3, 7283948), (4, 5462961), (6, 3641974), (7, 3121692), (12, 1820987), (14, 1560846), (21, 1040564), (28, 780423), (42, 520282), (49, 445956), (84, 260141), (98, 222978), (147, 148652), (196, 111489), (294, 74326), (343, 63708), (588, 37163), (686, 31854), (1029, 21236), (1372, 15927), (2058, 10618), (4116, 5309)]