21151770

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{53}}^2\times {\mathrm{251}}^1$

素因数の和:367

約数の個数: 48

約数和(自身を含む): 51946272

約数和(自身を除く): 30794502

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 53, 106, 159, 251, 265, 318, 502, 530, 753, 795, 1255, 1506, 1590, 2510, 2809, 3765, 5618, 7530, 8427, 13303, 14045, 16854, 26606, 28090, 39909, 42135, 66515, 79818, 84270, 133030, 199545, 399090, 705059, 1410118, 2115177, 3525295, 4230354, 7050590, 10575885, 21151770]

約数ペア:

[(1, 21151770), (2, 10575885), (3, 7050590), (5, 4230354), (6, 3525295), (10, 2115177), (15, 1410118), (30, 705059), (53, 399090), (106, 199545), (159, 133030), (251, 84270), (265, 79818), (318, 66515), (502, 42135), (530, 39909), (753, 28090), (795, 26606), (1255, 16854), (1506, 14045), (1590, 13303), (2510, 8427), (2809, 7530), (3765, 5618)]