21214536

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{641}}^1$

素因数の和:854

約数の個数: 64

約数和(自身を含む): 61015680

約数和(自身を除く): 39801144

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 168, 197, 394, 591, 641, 788, 1182, 1282, 1379, 1576, 1923, 2364, 2564, 2758, 3846, 4137, 4487, 4728, 5128, 5516, 7692, 8274, 8974, 11032, 13461, 15384, 16548, 17948, 26922, 33096, 35896, 53844, 107688, 126277, 252554, 378831, 505108, 757662, 883939, 1010216, 1515324, 1767878, 2651817, 3030648, 3535756, 5303634, 7071512, 10607268, 21214536]

約数ペア:

[(1, 21214536), (2, 10607268), (3, 7071512), (4, 5303634), (6, 3535756), (7, 3030648), (8, 2651817), (12, 1767878), (14, 1515324), (21, 1010216), (24, 883939), (28, 757662), (42, 505108), (56, 378831), (84, 252554), (168, 126277), (197, 107688), (394, 53844), (591, 35896), (641, 33096), (788, 26922), (1182, 17948), (1282, 16548), (1379, 15384), (1576, 13461), (1923, 11032), (2364, 8974), (2564, 8274), (2758, 7692), (3846, 5516), (4137, 5128), (4487, 4728)]