21808920

素因数分解:

$2^3\times 3^1\times 5^1\times 7^2\times {\mathrm{3709}}^1$

素因数の和:3737

約数の個数: 96

約数和(自身を含む): 76129200

約数和(自身を除く): 54320280

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 49, 56, 60, 70, 84, 98, 105, 120, 140, 147, 168, 196, 210, 245, 280, 294, 392, 420, 490, 588, 735, 840, 980, 1176, 1470, 1960, 2940, 3709, 5880, 7418, 11127, 14836, 18545, 22254, 25963, 29672, 37090, 44508, 51926, 55635, 74180, 77889, 89016, 103852, 111270, 129815, 148360, 155778, 181741, 207704, 222540, 259630, 311556, 363482, 389445, 445080, 519260, 545223, 623112, 726964, 778890, 908705, 1038520, 1090446, 1453928, 1557780, 1817410, 2180892, 2726115, 3115560, 3634820, 4361784, 5452230, 7269640, 10904460, 21808920]

約数ペア:

[(1, 21808920), (2, 10904460), (3, 7269640), (4, 5452230), (5, 4361784), (6, 3634820), (7, 3115560), (8, 2726115), (10, 2180892), (12, 1817410), (14, 1557780), (15, 1453928), (20, 1090446), (21, 1038520), (24, 908705), (28, 778890), (30, 726964), (35, 623112), (40, 545223), (42, 519260), (49, 445080), (56, 389445), (60, 363482), (70, 311556), (84, 259630), (98, 222540), (105, 207704), (120, 181741), (140, 155778), (147, 148360), (168, 129815), (196, 111270), (210, 103852), (245, 89016), (280, 77889), (294, 74180), (392, 55635), (420, 51926), (490, 44508), (588, 37090), (735, 29672), (840, 25963), (980, 22254), (1176, 18545), (1470, 14836), (1960, 11127), (2940, 7418), (3709, 5880)]