21794640

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{12973}}^1$

素因数の和:12996

約数の個数: 80

約数和(自身を含む): 77221248

約数和(自身を除く): 55426608

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 12973, 25946, 38919, 51892, 64865, 77838, 90811, 103784, 129730, 155676, 181622, 194595, 207568, 259460, 272433, 311352, 363244, 389190, 454055, 518920, 544866, 622704, 726488, 778380, 908110, 1037840, 1089732, 1362165, 1452976, 1556760, 1816220, 2179464, 2724330, 3113520, 3632440, 4358928, 5448660, 7264880, 10897320, 21794640]

約数ペア:

[(1, 21794640), (2, 10897320), (3, 7264880), (4, 5448660), (5, 4358928), (6, 3632440), (7, 3113520), (8, 2724330), (10, 2179464), (12, 1816220), (14, 1556760), (15, 1452976), (16, 1362165), (20, 1089732), (21, 1037840), (24, 908110), (28, 778380), (30, 726488), (35, 622704), (40, 544866), (42, 518920), (48, 454055), (56, 389190), (60, 363244), (70, 311352), (80, 272433), (84, 259460), (105, 207568), (112, 194595), (120, 181622), (140, 155676), (168, 129730), (210, 103784), (240, 90811), (280, 77838), (336, 64865), (420, 51892), (560, 38919), (840, 25946), (1680, 12973)]