20345823

素因数分解:

$3^4\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{163}}^1$

素因数の和:265

約数の個数: 40

約数和(自身を含む): 32385408

約数和(自身を除く): 12039585

約数列:

[1, 3, 9, 23, 27, 67, 69, 81, 163, 201, 207, 489, 603, 621, 1467, 1541, 1809, 1863, 3749, 4401, 4623, 5427, 10921, 11247, 13203, 13869, 32763, 33741, 41607, 98289, 101223, 124821, 251183, 294867, 303669, 753549, 884601, 2260647, 6781941, 20345823]

約数ペア:

[(1, 20345823), (3, 6781941), (9, 2260647), (23, 884601), (27, 753549), (67, 303669), (69, 294867), (81, 251183), (163, 124821), (201, 101223), (207, 98289), (489, 41607), (603, 33741), (621, 32763), (1467, 13869), (1541, 13203), (1809, 11247), (1863, 10921), (3749, 5427), (4401, 4623)]