21191450

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{191}}^1\times {\mathrm{317}}^1$

素因数の和:527

約数の個数: 48

約数和(自身を含む): 45425664

約数和(自身を除く): 24234214

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 50, 70, 175, 191, 317, 350, 382, 634, 955, 1337, 1585, 1910, 2219, 2674, 3170, 4438, 4775, 6685, 7925, 9550, 11095, 13370, 15850, 22190, 33425, 55475, 60547, 66850, 110950, 121094, 302735, 423829, 605470, 847658, 1513675, 2119145, 3027350, 4238290, 10595725, 21191450]

約数ペア:

[(1, 21191450), (2, 10595725), (5, 4238290), (7, 3027350), (10, 2119145), (14, 1513675), (25, 847658), (35, 605470), (50, 423829), (70, 302735), (175, 121094), (191, 110950), (317, 66850), (350, 60547), (382, 55475), (634, 33425), (955, 22190), (1337, 15850), (1585, 13370), (1910, 11095), (2219, 9550), (2674, 7925), (3170, 6685), (4438, 4775)]