21690760

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{101}}^1$

素因数の和:191

約数の個数: 128

約数和(自身を含む): 61689600

約数和(自身を除く): 39998840

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 59, 65, 70, 91, 101, 104, 118, 130, 140, 182, 202, 236, 260, 280, 295, 364, 404, 413, 455, 472, 505, 520, 590, 707, 728, 767, 808, 826, 910, 1010, 1180, 1313, 1414, 1534, 1652, 1820, 2020, 2065, 2360, 2626, 2828, 3068, 3304, 3535, 3640, 3835, 4040, 4130, 5252, 5369, 5656, 5959, 6136, 6565, 7070, 7670, 8260, 9191, 10504, 10738, 11918, 13130, 14140, 15340, 16520, 18382, 21476, 23836, 26260, 26845, 28280, 29795, 30680, 36764, 41713, 42952, 45955, 47672, 52520, 53690, 59590, 73528, 77467, 83426, 91910, 107380, 119180, 154934, 166852, 183820, 208565, 214760, 238360, 309868, 333704, 367640, 387335, 417130, 542269, 619736, 774670, 834260, 1084538, 1549340, 1668520, 2169076, 2711345, 3098680, 4338152, 5422690, 10845380, 21690760]

約数ペア:

[(1, 21690760), (2, 10845380), (4, 5422690), (5, 4338152), (7, 3098680), (8, 2711345), (10, 2169076), (13, 1668520), (14, 1549340), (20, 1084538), (26, 834260), (28, 774670), (35, 619736), (40, 542269), (52, 417130), (56, 387335), (59, 367640), (65, 333704), (70, 309868), (91, 238360), (101, 214760), (104, 208565), (118, 183820), (130, 166852), (140, 154934), (182, 119180), (202, 107380), (236, 91910), (260, 83426), (280, 77467), (295, 73528), (364, 59590), (404, 53690), (413, 52520), (455, 47672), (472, 45955), (505, 42952), (520, 41713), (590, 36764), (707, 30680), (728, 29795), (767, 28280), (808, 26845), (826, 26260), (910, 23836), (1010, 21476), (1180, 18382), (1313, 16520), (1414, 15340), (1534, 14140), (1652, 13130), (1820, 11918), (2020, 10738), (2065, 10504), (2360, 9191), (2626, 8260), (2828, 7670), (3068, 7070), (3304, 6565), (3535, 6136), (3640, 5959), (3835, 5656), (4040, 5369), (4130, 5252)]