21850472

素因数分解:

$2^3\times 7^3\times {\mathrm{7963}}^1$

素因数の和:7990

約数の個数: 32

約数和(自身を含む): 47784000

約数和(自身を除く): 25933528

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196, 343, 392, 686, 1372, 2744, 7963, 15926, 31852, 55741, 63704, 111482, 222964, 390187, 445928, 780374, 1560748, 2731309, 3121496, 5462618, 10925236, 21850472]

約数ペア:

[(1, 21850472), (2, 10925236), (4, 5462618), (7, 3121496), (8, 2731309), (14, 1560748), (28, 780374), (49, 445928), (56, 390187), (98, 222964), (196, 111482), (343, 63704), (392, 55741), (686, 31852), (1372, 15926), (2744, 7963)]