21759560

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{28631}}^1$

素因数の和:28661

約数の個数: 32

約数和(自身を含む): 51537600

約数和(自身を除く): 29778040

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 28631, 57262, 114524, 143155, 229048, 286310, 543989, 572620, 1087978, 1145240, 2175956, 2719945, 4351912, 5439890, 10879780, 21759560]

約数ペア:

[(1, 21759560), (2, 10879780), (4, 5439890), (5, 4351912), (8, 2719945), (10, 2175956), (19, 1145240), (20, 1087978), (38, 572620), (40, 543989), (76, 286310), (95, 229048), (152, 143155), (190, 114524), (380, 57262), (760, 28631)]