20502273

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{1721}}^1$

素因数の和:1773

約数の個数: 24

約数和(自身を含む): 31491936

約数和(自身を除く): 10989663

約数列:

[1, 3, 11, 19, 33, 57, 209, 361, 627, 1083, 1721, 3971, 5163, 11913, 18931, 32699, 56793, 98097, 359689, 621281, 1079067, 1863843, 6834091, 20502273]

約数ペア:

[(1, 20502273), (3, 6834091), (11, 1863843), (19, 1079067), (33, 621281), (57, 359689), (209, 98097), (361, 56793), (627, 32699), (1083, 18931), (1721, 11913), (3971, 5163)]