21010192

素因数分解:

$2^4\times 7^1\times {\mathrm{149}}^1\times {\mathrm{1259}}^1$

素因数の和:1423

約数の個数: 40

約数和(自身を含む): 46872000

約数和(自身を除く): 25861808

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 149, 298, 596, 1043, 1192, 1259, 2086, 2384, 2518, 4172, 5036, 8344, 8813, 10072, 16688, 17626, 20144, 35252, 70504, 141008, 187591, 375182, 750364, 1313137, 1500728, 2626274, 3001456, 5252548, 10505096, 21010192]

約数ペア:

[(1, 21010192), (2, 10505096), (4, 5252548), (7, 3001456), (8, 2626274), (14, 1500728), (16, 1313137), (28, 750364), (56, 375182), (112, 187591), (149, 141008), (298, 70504), (596, 35252), (1043, 20144), (1192, 17626), (1259, 16688), (2086, 10072), (2384, 8813), (2518, 8344), (4172, 5036)]