191191617

素因数分解:

$3^3\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{157}}^1$

素因数の和:279

約数の個数: 64

約数和(自身を含む): 311247360

約数和(自身を除く): 120055743

約数列:

[1, 3, 9, 23, 27, 37, 53, 69, 111, 157, 159, 207, 333, 471, 477, 621, 851, 999, 1219, 1413, 1431, 1961, 2553, 3611, 3657, 4239, 5809, 5883, 7659, 8321, 10833, 10971, 17427, 17649, 22977, 24963, 32499, 32913, 45103, 52281, 52947, 74889, 97497, 133607, 135309, 156843, 191383, 224667, 307877, 400821, 405927, 574149, 923631, 1202463, 1217781, 1722447, 2770893, 3607389, 5167341, 7081171, 8312679, 21243513, 63730539, 191191617]

約数ペア:

[(1, 191191617), (3, 63730539), (9, 21243513), (23, 8312679), (27, 7081171), (37, 5167341), (53, 3607389), (69, 2770893), (111, 1722447), (157, 1217781), (159, 1202463), (207, 923631), (333, 574149), (471, 405927), (477, 400821), (621, 307877), (851, 224667), (999, 191383), (1219, 156843), (1413, 135309), (1431, 133607), (1961, 97497), (2553, 74889), (3611, 52947), (3657, 52281), (4239, 45103), (5809, 32913), (5883, 32499), (7659, 24963), (8321, 22977), (10833, 17649), (10971, 17427)]