18447975

素因数分解:

$3^2\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1$

素因数の和:106

約数の個数: 144

約数和(自身を含む): 43872192

約数和(自身を除く): 25424217

約数列:

[1, 3, 5, 7, 9, 13, 15, 17, 21, 25, 35, 39, 45, 51, 53, 63, 65, 75, 85, 91, 105, 117, 119, 153, 159, 175, 195, 221, 225, 255, 265, 273, 315, 325, 357, 371, 425, 455, 477, 525, 585, 595, 663, 689, 765, 795, 819, 901, 975, 1071, 1105, 1113, 1275, 1325, 1365, 1547, 1575, 1785, 1855, 1989, 2067, 2275, 2385, 2703, 2925, 2975, 3315, 3339, 3445, 3825, 3975, 4095, 4505, 4641, 4823, 5355, 5525, 5565, 6201, 6307, 6825, 7735, 8109, 8925, 9275, 9945, 10335, 11713, 11925, 13515, 13923, 14469, 16575, 16695, 17225, 18921, 20475, 22525, 23205, 24115, 26775, 27825, 31005, 31535, 35139, 38675, 40545, 43407, 49725, 51675, 56763, 58565, 67575, 69615, 72345, 81991, 83475, 94605, 105417, 116025, 120575, 155025, 157675, 175695, 202725, 217035, 245973, 283815, 292825, 348075, 361725, 409955, 473025, 527085, 737919, 878475, 1085175, 1229865, 1419075, 2049775, 2635425, 3689595, 6149325, 18447975]

約数ペア:

[(1, 18447975), (3, 6149325), (5, 3689595), (7, 2635425), (9, 2049775), (13, 1419075), (15, 1229865), (17, 1085175), (21, 878475), (25, 737919), (35, 527085), (39, 473025), (45, 409955), (51, 361725), (53, 348075), (63, 292825), (65, 283815), (75, 245973), (85, 217035), (91, 202725), (105, 175695), (117, 157675), (119, 155025), (153, 120575), (159, 116025), (175, 105417), (195, 94605), (221, 83475), (225, 81991), (255, 72345), (265, 69615), (273, 67575), (315, 58565), (325, 56763), (357, 51675), (371, 49725), (425, 43407), (455, 40545), (477, 38675), (525, 35139), (585, 31535), (595, 31005), (663, 27825), (689, 26775), (765, 24115), (795, 23205), (819, 22525), (901, 20475), (975, 18921), (1071, 17225), (1105, 16695), (1113, 16575), (1275, 14469), (1325, 13923), (1365, 13515), (1547, 11925), (1575, 11713), (1785, 10335), (1855, 9945), (1989, 9275), (2067, 8925), (2275, 8109), (2385, 7735), (2703, 6825), (2925, 6307), (2975, 6201), (3315, 5565), (3339, 5525), (3445, 5355), (3825, 4823), (3975, 4641), (4095, 4505)]