21463890

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{179}}^1\times {\mathrm{571}}^1$

素因数の和:767

約数の個数: 64

約数和(自身を含む): 59304960

約数和(自身を除く): 37841070

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 179, 210, 358, 537, 571, 895, 1074, 1142, 1253, 1713, 1790, 2506, 2685, 2855, 3426, 3759, 3997, 5370, 5710, 6265, 7518, 7994, 8565, 11991, 12530, 17130, 18795, 19985, 23982, 37590, 39970, 59955, 102209, 119910, 204418, 306627, 511045, 613254, 715463, 1022090, 1430926, 1533135, 2146389, 3066270, 3577315, 4292778, 7154630, 10731945, 21463890]

約数ペア:

[(1, 21463890), (2, 10731945), (3, 7154630), (5, 4292778), (6, 3577315), (7, 3066270), (10, 2146389), (14, 1533135), (15, 1430926), (21, 1022090), (30, 715463), (35, 613254), (42, 511045), (70, 306627), (105, 204418), (179, 119910), (210, 102209), (358, 59955), (537, 39970), (571, 37590), (895, 23982), (1074, 19985), (1142, 18795), (1253, 17130), (1713, 12530), (1790, 11991), (2506, 8565), (2685, 7994), (2855, 7518), (3426, 6265), (3759, 5710), (3997, 5370)]