20919885

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{6427}}^1$

素因数の和:6473

約数の個数: 32

約数和(自身を含む): 39493632

約数和(自身を除く): 18573747

約数列:

[1, 3, 5, 7, 15, 21, 31, 35, 93, 105, 155, 217, 465, 651, 1085, 3255, 6427, 19281, 32135, 44989, 96405, 134967, 199237, 224945, 597711, 674835, 996185, 1394659, 2988555, 4183977, 6973295, 20919885]

約数ペア:

[(1, 20919885), (3, 6973295), (5, 4183977), (7, 2988555), (15, 1394659), (21, 996185), (31, 674835), (35, 597711), (93, 224945), (105, 199237), (155, 134967), (217, 96405), (465, 44989), (651, 32135), (1085, 19281), (3255, 6427)]