21291130

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{2953}}^1$

素因数の和:3070

約数の個数: 32

約数和(自身を含む): 44239104

約数和(自身を除く): 22947974

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 103, 206, 515, 721, 1030, 1442, 2953, 3605, 5906, 7210, 14765, 20671, 29530, 41342, 103355, 206710, 304159, 608318, 1520795, 2129113, 3041590, 4258226, 10645565, 21291130]

約数ペア:

[(1, 21291130), (2, 10645565), (5, 4258226), (7, 3041590), (10, 2129113), (14, 1520795), (35, 608318), (70, 304159), (103, 206710), (206, 103355), (515, 41342), (721, 29530), (1030, 20671), (1442, 14765), (2953, 7210), (3605, 5906)]