21870298828

素因数分解:

$2^2\times 7^1\times {\mathrm{3989}}^1\times {\mathrm{195809}}^1$

素因数の和:199809

約数の個数: 24

約数和(自身を含む): 43751786400

約数和(自身を除く): 21881487572

約数列:

[1, 2, 4, 7, 14, 28, 3989, 7978, 15956, 27923, 55846, 111692, 195809, 391618, 783236, 1370663, 2741326, 5482652, 781082101, 1562164202, 3124328404, 5467574707, 10935149414, 21870298828]

約数ペア:

[(1, 21870298828), (2, 10935149414), (4, 5467574707), (7, 3124328404), (14, 1562164202), (28, 781082101), (3989, 5482652), (7978, 2741326), (15956, 1370663), (27923, 783236), (55846, 391618), (111692, 195809)]