21684060

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{179}}^1\times {\mathrm{673}}^1$

素因数の和:867

約数の個数: 72

約数和(自身を含む): 66240720

約数和(自身を除く): 44556660

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 179, 180, 358, 537, 673, 716, 895, 1074, 1346, 1611, 1790, 2019, 2148, 2685, 2692, 3222, 3365, 3580, 4038, 5370, 6057, 6444, 6730, 8055, 8076, 10095, 10740, 12114, 13460, 16110, 20190, 24228, 30285, 32220, 40380, 60570, 120467, 121140, 240934, 361401, 481868, 602335, 722802, 1084203, 1204670, 1445604, 1807005, 2168406, 2409340, 3614010, 4336812, 5421015, 7228020, 10842030, 21684060]

約数ペア:

[(1, 21684060), (2, 10842030), (3, 7228020), (4, 5421015), (5, 4336812), (6, 3614010), (9, 2409340), (10, 2168406), (12, 1807005), (15, 1445604), (18, 1204670), (20, 1084203), (30, 722802), (36, 602335), (45, 481868), (60, 361401), (90, 240934), (179, 121140), (180, 120467), (358, 60570), (537, 40380), (673, 32220), (716, 30285), (895, 24228), (1074, 20190), (1346, 16110), (1611, 13460), (1790, 12114), (2019, 10740), (2148, 10095), (2685, 8076), (2692, 8055), (3222, 6730), (3365, 6444), (3580, 6057), (4038, 5370)]