21700910

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{28183}}^1$

素因数の和:28208

約数の個数: 32

約数和(自身を含む): 48701952

約数和(自身を除く): 27001042

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 77, 110, 154, 385, 770, 28183, 56366, 140915, 197281, 281830, 310013, 394562, 620026, 986405, 1550065, 1972810, 2170091, 3100130, 4340182, 10850455, 21700910]

約数ペア:

[(1, 21700910), (2, 10850455), (5, 4340182), (7, 3100130), (10, 2170091), (11, 1972810), (14, 1550065), (22, 986405), (35, 620026), (55, 394562), (70, 310013), (77, 281830), (110, 197281), (154, 140915), (385, 56366), (770, 28183)]