278330871

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{509}}^1\times {\mathrm{2003}}^1$

素因数の和:2535

約数の個数: 32

約数和(自身を含む): 457873920

約数和(自身を除く): 179543049

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 509, 1527, 2003, 3563, 6009, 6617, 10689, 14021, 19851, 26039, 42063, 46319, 78117, 138957, 182273, 546819, 1019527, 3058581, 7136689, 13253851, 21410067, 39761553, 92776957, 278330871]

約数ペア:

[(1, 278330871), (3, 92776957), (7, 39761553), (13, 21410067), (21, 13253851), (39, 7136689), (91, 3058581), (273, 1019527), (509, 546819), (1527, 182273), (2003, 138957), (3563, 78117), (6009, 46319), (6617, 42063), (10689, 26039), (14021, 19851)]