21972321808

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{2633}}^1\times {\mathrm{12721}}^1$

素因数の和:15403

約数の個数: 40

約数和(自身を含む): 43629691896

約数和(自身を除く): 21657370088

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 2633, 5266, 10532, 12721, 21064, 25442, 42128, 50884, 101768, 107953, 203536, 215906, 431812, 521561, 863624, 1043122, 1727248, 2086244, 4172488, 8344976, 33494393, 66988786, 133977572, 267955144, 535910288, 1373270113, 2746540226, 5493080452, 10986160904, 21972321808]

約数ペア:

[(1, 21972321808), (2, 10986160904), (4, 5493080452), (8, 2746540226), (16, 1373270113), (41, 535910288), (82, 267955144), (164, 133977572), (328, 66988786), (656, 33494393), (2633, 8344976), (5266, 4172488), (10532, 2086244), (12721, 1727248), (21064, 1043122), (25442, 863624), (42128, 521561), (50884, 431812), (101768, 215906), (107953, 203536)]