21271810

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{229}}^1\times {\mathrm{1327}}^1$

素因数の和:1570

約数の個数: 32

約数和(自身を含む): 43983360

約数和(自身を除く): 22711550

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 229, 458, 1145, 1327, 1603, 2290, 2654, 3206, 6635, 8015, 9289, 13270, 16030, 18578, 46445, 92890, 303883, 607766, 1519415, 2127181, 3038830, 4254362, 10635905, 21271810]

約数ペア:

[(1, 21271810), (2, 10635905), (5, 4254362), (7, 3038830), (10, 2127181), (14, 1519415), (35, 607766), (70, 303883), (229, 92890), (458, 46445), (1145, 18578), (1327, 16030), (1603, 13270), (2290, 9289), (2654, 8015), (3206, 6635)]