21426230

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{73}}^1\times {\mathrm{599}}^1$

素因数の和:693

約数の個数: 48

約数和(自身を含む): 45554400

約数和(自身を除く): 24128170

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 73, 98, 146, 245, 365, 490, 511, 599, 730, 1022, 1198, 2555, 2995, 3577, 4193, 5110, 5990, 7154, 8386, 17885, 20965, 29351, 35770, 41930, 43727, 58702, 87454, 146755, 218635, 293510, 306089, 437270, 612178, 1530445, 2142623, 3060890, 4285246, 10713115, 21426230]

約数ペア:

[(1, 21426230), (2, 10713115), (5, 4285246), (7, 3060890), (10, 2142623), (14, 1530445), (35, 612178), (49, 437270), (70, 306089), (73, 293510), (98, 218635), (146, 146755), (245, 87454), (365, 58702), (490, 43727), (511, 41930), (599, 35770), (730, 29351), (1022, 20965), (1198, 17885), (2555, 8386), (2995, 7154), (3577, 5990), (4193, 5110)]