21173040

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{4201}}^1$

素因数の和:4227

約数の個数: 120

約数和(自身を含む): 81283488

約数和(自身を除く): 60110448

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 105, 112, 120, 126, 140, 144, 168, 180, 210, 240, 252, 280, 315, 336, 360, 420, 504, 560, 630, 720, 840, 1008, 1260, 1680, 2520, 4201, 5040, 8402, 12603, 16804, 21005, 25206, 29407, 33608, 37809, 42010, 50412, 58814, 63015, 67216, 75618, 84020, 88221, 100824, 117628, 126030, 147035, 151236, 168040, 176442, 189045, 201648, 235256, 252060, 264663, 294070, 302472, 336080, 352884, 378090, 441105, 470512, 504120, 529326, 588140, 604944, 705768, 756180, 882210, 1008240, 1058652, 1176280, 1323315, 1411536, 1512360, 1764420, 2117304, 2352560, 2646630, 3024720, 3528840, 4234608, 5293260, 7057680, 10586520, 21173040]

約数ペア:

[(1, 21173040), (2, 10586520), (3, 7057680), (4, 5293260), (5, 4234608), (6, 3528840), (7, 3024720), (8, 2646630), (9, 2352560), (10, 2117304), (12, 1764420), (14, 1512360), (15, 1411536), (16, 1323315), (18, 1176280), (20, 1058652), (21, 1008240), (24, 882210), (28, 756180), (30, 705768), (35, 604944), (36, 588140), (40, 529326), (42, 504120), (45, 470512), (48, 441105), (56, 378090), (60, 352884), (63, 336080), (70, 302472), (72, 294070), (80, 264663), (84, 252060), (90, 235256), (105, 201648), (112, 189045), (120, 176442), (126, 168040), (140, 151236), (144, 147035), (168, 126030), (180, 117628), (210, 100824), (240, 88221), (252, 84020), (280, 75618), (315, 67216), (336, 63015), (360, 58814), (420, 50412), (504, 42010), (560, 37809), (630, 33608), (720, 29407), (840, 25206), (1008, 21005), (1260, 16804), (1680, 12603), (2520, 8402), (4201, 5040)]