21921480

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{8699}}^1$

素因数の和:8723

約数の個数: 96

約数和(自身を含む): 81432000

約数和(自身を除く): 59510520

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 56, 60, 63, 70, 72, 84, 90, 105, 120, 126, 140, 168, 180, 210, 252, 280, 315, 360, 420, 504, 630, 840, 1260, 2520, 8699, 17398, 26097, 34796, 43495, 52194, 60893, 69592, 78291, 86990, 104388, 121786, 130485, 156582, 173980, 182679, 208776, 243572, 260970, 304465, 313164, 347960, 365358, 391455, 487144, 521940, 548037, 608930, 626328, 730716, 782910, 913395, 1043880, 1096074, 1217860, 1461432, 1565820, 1826790, 2192148, 2435720, 2740185, 3131640, 3653580, 4384296, 5480370, 7307160, 10960740, 21921480]

約数ペア:

[(1, 21921480), (2, 10960740), (3, 7307160), (4, 5480370), (5, 4384296), (6, 3653580), (7, 3131640), (8, 2740185), (9, 2435720), (10, 2192148), (12, 1826790), (14, 1565820), (15, 1461432), (18, 1217860), (20, 1096074), (21, 1043880), (24, 913395), (28, 782910), (30, 730716), (35, 626328), (36, 608930), (40, 548037), (42, 521940), (45, 487144), (56, 391455), (60, 365358), (63, 347960), (70, 313164), (72, 304465), (84, 260970), (90, 243572), (105, 208776), (120, 182679), (126, 173980), (140, 156582), (168, 130485), (180, 121786), (210, 104388), (252, 86990), (280, 78291), (315, 69592), (360, 60893), (420, 52194), (504, 43495), (630, 34796), (840, 26097), (1260, 17398), (2520, 8699)]