20646711

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{167}}^1\times {\mathrm{241}}^1$

素因数の和:436

約数の個数: 32

約数和(自身を含む): 32524800

約数和(自身を除く): 11878089

約数列:

[1, 3, 9, 19, 27, 57, 167, 171, 241, 501, 513, 723, 1503, 2169, 3173, 4509, 4579, 6507, 9519, 13737, 28557, 40247, 41211, 85671, 120741, 123633, 362223, 764693, 1086669, 2294079, 6882237, 20646711]

約数ペア:

[(1, 20646711), (3, 6882237), (9, 2294079), (19, 1086669), (27, 764693), (57, 362223), (167, 123633), (171, 120741), (241, 85671), (501, 41211), (513, 40247), (723, 28557), (1503, 13737), (2169, 9519), (3173, 6507), (4509, 4579)]