31411557

素因数分解:

$3^4\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{223}}^1$

素因数の和:319

約数の個数: 40

約数和(自身を含む): 49437696

約数和(自身を除く): 18026139

約数列:

[1, 3, 9, 27, 37, 47, 81, 111, 141, 223, 333, 423, 669, 999, 1269, 1739, 2007, 2997, 3807, 5217, 6021, 8251, 10481, 15651, 18063, 24753, 31443, 46953, 74259, 94329, 140859, 222777, 282987, 387797, 668331, 848961, 1163391, 3490173, 10470519, 31411557]

約数ペア:

[(1, 31411557), (3, 10470519), (9, 3490173), (27, 1163391), (37, 848961), (47, 668331), (81, 387797), (111, 282987), (141, 222777), (223, 140859), (333, 94329), (423, 74259), (669, 46953), (999, 31443), (1269, 24753), (1739, 18063), (2007, 15651), (2997, 10481), (3807, 8251), (5217, 6021)]