217439631

素因数分解:

$3^2\times {\mathrm{23}}^2\times {\mathrm{109}}^1\times {\mathrm{419}}^1$

素因数の和:580

約数の個数: 36

約数和(自身を含む): 332131800

約数和(自身を除く): 114692169

約数列:

[1, 3, 9, 23, 69, 109, 207, 327, 419, 529, 981, 1257, 1587, 2507, 3771, 4761, 7521, 9637, 22563, 28911, 45671, 57661, 86733, 137013, 172983, 221651, 411039, 518949, 664953, 1050433, 1994859, 3151299, 9453897, 24159959, 72479877, 217439631]

約数ペア:

[(1, 217439631), (3, 72479877), (9, 24159959), (23, 9453897), (69, 3151299), (109, 1994859), (207, 1050433), (327, 664953), (419, 518949), (529, 411039), (981, 221651), (1257, 172983), (1587, 137013), (2507, 86733), (3771, 57661), (4761, 45671), (7521, 28911), (9637, 22563)]