21778442

素因数分解:

$2^1\times 7^3\times {\mathrm{53}}^1\times {\mathrm{599}}^1$

素因数の和:675

約数の個数: 32

約数和(自身を含む): 38880000

約数和(自身を除く): 17101558

約数列:

[1, 2, 7, 14, 49, 53, 98, 106, 343, 371, 599, 686, 742, 1198, 2597, 4193, 5194, 8386, 18179, 29351, 31747, 36358, 58702, 63494, 205457, 222229, 410914, 444458, 1555603, 3111206, 10889221, 21778442]

約数ペア:

[(1, 21778442), (2, 10889221), (7, 3111206), (14, 1555603), (49, 444458), (53, 410914), (98, 222229), (106, 205457), (343, 63494), (371, 58702), (599, 36358), (686, 31747), (742, 29351), (1198, 18179), (2597, 8386), (4193, 5194)]