18003825

素因数分解:

$3^2\times 5^2\times 7^2\times {\mathrm{23}}^1\times {\mathrm{71}}^1$

素因数の和:124

約数の個数: 108

約数和(自身を含む): 39693888

約数和(自身を除く): 21690063

約数列:

[1, 3, 5, 7, 9, 15, 21, 23, 25, 35, 45, 49, 63, 69, 71, 75, 105, 115, 147, 161, 175, 207, 213, 225, 245, 315, 345, 355, 441, 483, 497, 525, 575, 639, 735, 805, 1035, 1065, 1127, 1225, 1449, 1491, 1575, 1633, 1725, 1775, 2205, 2415, 2485, 3195, 3381, 3479, 3675, 4025, 4473, 4899, 5175, 5325, 5635, 7245, 7455, 8165, 10143, 10437, 11025, 11431, 12075, 12425, 14697, 15975, 16905, 17395, 22365, 24495, 28175, 31311, 34293, 36225, 37275, 40825, 50715, 52185, 57155, 73485, 80017, 84525, 86975, 102879, 111825, 122475, 156555, 171465, 240051, 253575, 260925, 285775, 367425, 400085, 514395, 720153, 782775, 857325, 1200255, 2000425, 2571975, 3600765, 6001275, 18003825]

約数ペア:

[(1, 18003825), (3, 6001275), (5, 3600765), (7, 2571975), (9, 2000425), (15, 1200255), (21, 857325), (23, 782775), (25, 720153), (35, 514395), (45, 400085), (49, 367425), (63, 285775), (69, 260925), (71, 253575), (75, 240051), (105, 171465), (115, 156555), (147, 122475), (161, 111825), (175, 102879), (207, 86975), (213, 84525), (225, 80017), (245, 73485), (315, 57155), (345, 52185), (355, 50715), (441, 40825), (483, 37275), (497, 36225), (525, 34293), (575, 31311), (639, 28175), (735, 24495), (805, 22365), (1035, 17395), (1065, 16905), (1127, 15975), (1225, 14697), (1449, 12425), (1491, 12075), (1575, 11431), (1633, 11025), (1725, 10437), (1775, 10143), (2205, 8165), (2415, 7455), (2485, 7245), (3195, 5635), (3381, 5325), (3479, 5175), (3675, 4899), (4025, 4473)]