21820186545

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{149}}^1\times {\mathrm{7867}}^1$

素因数の和:8114

約数の個数: 64

約数和(自身を含む): 37728633600

約数和(自身を除く): 15908447055

約数列:

[1, 3, 5, 15, 17, 51, 73, 85, 149, 219, 255, 365, 447, 745, 1095, 1241, 2235, 2533, 3723, 6205, 7599, 7867, 10877, 12665, 18615, 23601, 32631, 37995, 39335, 54385, 118005, 133739, 163155, 184909, 401217, 554727, 574291, 668695, 924545, 1172183, 1722873, 2006085, 2773635, 2871455, 3516549, 5860915, 8614365, 9762947, 17582745, 19927111, 29288841, 48814735, 59781333, 85569359, 99635555, 146444205, 256708077, 298906665, 427846795, 1283540385, 1454679103, 4364037309, 7273395515, 21820186545]

約数ペア:

[(1, 21820186545), (3, 7273395515), (5, 4364037309), (15, 1454679103), (17, 1283540385), (51, 427846795), (73, 298906665), (85, 256708077), (149, 146444205), (219, 99635555), (255, 85569359), (365, 59781333), (447, 48814735), (745, 29288841), (1095, 19927111), (1241, 17582745), (2235, 9762947), (2533, 8614365), (3723, 5860915), (6205, 3516549), (7599, 2871455), (7867, 2773635), (10877, 2006085), (12665, 1722873), (18615, 1172183), (23601, 924545), (32631, 668695), (37995, 574291), (39335, 554727), (54385, 401217), (118005, 184909), (133739, 163155)]