21701880

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{2621}}^1$

素因数の和:2661

約数の個数: 96

約数和(自身を含む): 73625760

約数和(自身を除く): 51923880

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 23, 24, 30, 36, 40, 45, 46, 60, 69, 72, 90, 92, 115, 120, 138, 180, 184, 207, 230, 276, 345, 360, 414, 460, 552, 690, 828, 920, 1035, 1380, 1656, 2070, 2621, 2760, 4140, 5242, 7863, 8280, 10484, 13105, 15726, 20968, 23589, 26210, 31452, 39315, 47178, 52420, 60283, 62904, 78630, 94356, 104840, 117945, 120566, 157260, 180849, 188712, 235890, 241132, 301415, 314520, 361698, 471780, 482264, 542547, 602830, 723396, 904245, 943560, 1085094, 1205660, 1446792, 1808490, 2170188, 2411320, 2712735, 3616980, 4340376, 5425470, 7233960, 10850940, 21701880]

約数ペア:

[(1, 21701880), (2, 10850940), (3, 7233960), (4, 5425470), (5, 4340376), (6, 3616980), (8, 2712735), (9, 2411320), (10, 2170188), (12, 1808490), (15, 1446792), (18, 1205660), (20, 1085094), (23, 943560), (24, 904245), (30, 723396), (36, 602830), (40, 542547), (45, 482264), (46, 471780), (60, 361698), (69, 314520), (72, 301415), (90, 241132), (92, 235890), (115, 188712), (120, 180849), (138, 157260), (180, 120566), (184, 117945), (207, 104840), (230, 94356), (276, 78630), (345, 62904), (360, 60283), (414, 52420), (460, 47178), (552, 39315), (690, 31452), (828, 26210), (920, 23589), (1035, 20968), (1380, 15726), (1656, 13105), (2070, 10484), (2621, 8280), (2760, 7863), (4140, 5242)]