21674870

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{419}}^1\times {\mathrm{739}}^1$

素因数の和:1172

約数の個数: 32

約数和(自身を含む): 44755200

約数和(自身を除く): 23080330

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 419, 739, 838, 1478, 2095, 2933, 3695, 4190, 5173, 5866, 7390, 10346, 14665, 25865, 29330, 51730, 309641, 619282, 1548205, 2167487, 3096410, 4334974, 10837435, 21674870]

約数ペア:

[(1, 21674870), (2, 10837435), (5, 4334974), (7, 3096410), (10, 2167487), (14, 1548205), (35, 619282), (70, 309641), (419, 51730), (739, 29330), (838, 25865), (1478, 14665), (2095, 10346), (2933, 7390), (3695, 5866), (4190, 5173)]