21942872

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{503}}^1$

素因数の和:576

約数の個数: 64

約数和(自身を含む): 50803200

約数和(自身を除く): 28860328

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 41, 56, 76, 82, 133, 152, 164, 266, 287, 328, 503, 532, 574, 779, 1006, 1064, 1148, 1558, 2012, 2296, 3116, 3521, 4024, 5453, 6232, 7042, 9557, 10906, 14084, 19114, 20623, 21812, 28168, 38228, 41246, 43624, 66899, 76456, 82492, 133798, 144361, 164984, 267596, 288722, 391837, 535192, 577444, 783674, 1154888, 1567348, 2742859, 3134696, 5485718, 10971436, 21942872]

約数ペア:

[(1, 21942872), (2, 10971436), (4, 5485718), (7, 3134696), (8, 2742859), (14, 1567348), (19, 1154888), (28, 783674), (38, 577444), (41, 535192), (56, 391837), (76, 288722), (82, 267596), (133, 164984), (152, 144361), (164, 133798), (266, 82492), (287, 76456), (328, 66899), (503, 43624), (532, 41246), (574, 38228), (779, 28168), (1006, 21812), (1064, 20623), (1148, 19114), (1558, 14084), (2012, 10906), (2296, 9557), (3116, 7042), (3521, 6232), (4024, 5453)]