20915464

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{1601}}^1$

素因数の和:1701

約数の個数: 32

約数和(自身を含む): 41523840

約数和(自身を除く): 20608376

約数列:

[1, 2, 4, 8, 23, 46, 71, 92, 142, 184, 284, 568, 1601, 1633, 3202, 3266, 6404, 6532, 12808, 13064, 36823, 73646, 113671, 147292, 227342, 294584, 454684, 909368, 2614433, 5228866, 10457732, 20915464]

約数ペア:

[(1, 20915464), (2, 10457732), (4, 5228866), (8, 2614433), (23, 909368), (46, 454684), (71, 294584), (92, 227342), (142, 147292), (184, 113671), (284, 73646), (568, 36823), (1601, 13064), (1633, 12808), (3202, 6532), (3266, 6404)]