21706510

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{1429}}^1$

素因数の和:1481

約数の個数: 48

約数和(自身を含む): 46949760

約数和(自身を除く): 25243250

約数列:

[1, 2, 5, 7, 10, 14, 31, 35, 49, 62, 70, 98, 155, 217, 245, 310, 434, 490, 1085, 1429, 1519, 2170, 2858, 3038, 7145, 7595, 10003, 14290, 15190, 20006, 44299, 50015, 70021, 88598, 100030, 140042, 221495, 310093, 350105, 442990, 620186, 700210, 1550465, 2170651, 3100930, 4341302, 10853255, 21706510]

約数ペア:

[(1, 21706510), (2, 10853255), (5, 4341302), (7, 3100930), (10, 2170651), (14, 1550465), (31, 700210), (35, 620186), (49, 442990), (62, 350105), (70, 310093), (98, 221495), (155, 140042), (217, 100030), (245, 88598), (310, 70021), (434, 50015), (490, 44299), (1085, 20006), (1429, 15190), (1519, 14290), (2170, 10003), (2858, 7595), (3038, 7145)]