18488925

素因数分解:

$3^3\times 5^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1$

素因数の和:89

約数の個数: 144

約数和(自身を含む): 43538880

約数和(自身を除く): 25049955

約数列:

[1, 3, 5, 7, 9, 13, 15, 21, 25, 27, 35, 39, 43, 45, 49, 63, 65, 75, 91, 105, 117, 129, 135, 147, 175, 189, 195, 215, 225, 245, 273, 301, 315, 325, 351, 387, 441, 455, 525, 559, 585, 637, 645, 675, 735, 819, 903, 945, 975, 1075, 1161, 1225, 1323, 1365, 1505, 1575, 1677, 1755, 1911, 1935, 2107, 2205, 2275, 2457, 2709, 2795, 2925, 3185, 3225, 3675, 3913, 4095, 4515, 4725, 5031, 5733, 5805, 6321, 6615, 6825, 7525, 8127, 8385, 8775, 9555, 9675, 10535, 11025, 11739, 12285, 13545, 13975, 15093, 15925, 17199, 18963, 19565, 20475, 22575, 25155, 27391, 28665, 29025, 31605, 33075, 35217, 40635, 41925, 47775, 52675, 56889, 58695, 61425, 67725, 75465, 82173, 85995, 94815, 97825, 105651, 125775, 136955, 143325, 158025, 176085, 203175, 246519, 284445, 293475, 377325, 410865, 429975, 474075, 528255, 684775, 739557, 880425, 1232595, 1422225, 2054325, 2641275, 3697785, 6162975, 18488925]

約数ペア:

[(1, 18488925), (3, 6162975), (5, 3697785), (7, 2641275), (9, 2054325), (13, 1422225), (15, 1232595), (21, 880425), (25, 739557), (27, 684775), (35, 528255), (39, 474075), (43, 429975), (45, 410865), (49, 377325), (63, 293475), (65, 284445), (75, 246519), (91, 203175), (105, 176085), (117, 158025), (129, 143325), (135, 136955), (147, 125775), (175, 105651), (189, 97825), (195, 94815), (215, 85995), (225, 82173), (245, 75465), (273, 67725), (301, 61425), (315, 58695), (325, 56889), (351, 52675), (387, 47775), (441, 41925), (455, 40635), (525, 35217), (559, 33075), (585, 31605), (637, 29025), (645, 28665), (675, 27391), (735, 25155), (819, 22575), (903, 20475), (945, 19565), (975, 18963), (1075, 17199), (1161, 15925), (1225, 15093), (1323, 13975), (1365, 13545), (1505, 12285), (1575, 11739), (1677, 11025), (1755, 10535), (1911, 9675), (1935, 9555), (2107, 8775), (2205, 8385), (2275, 8127), (2457, 7525), (2709, 6825), (2795, 6615), (2925, 6321), (3185, 5805), (3225, 5733), (3675, 5031), (3913, 4725), (4095, 4515)]