21809880

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{1289}}^1$

素因数の和:1353

約数の個数: 96

約数和(自身を含む): 72446400

約数和(自身を除く): 50636520

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 47, 60, 72, 90, 94, 120, 141, 180, 188, 235, 282, 360, 376, 423, 470, 564, 705, 846, 940, 1128, 1289, 1410, 1692, 1880, 2115, 2578, 2820, 3384, 3867, 4230, 5156, 5640, 6445, 7734, 8460, 10312, 11601, 12890, 15468, 16920, 19335, 23202, 25780, 30936, 38670, 46404, 51560, 58005, 60583, 77340, 92808, 116010, 121166, 154680, 181749, 232020, 242332, 302915, 363498, 464040, 484664, 545247, 605830, 726996, 908745, 1090494, 1211660, 1453992, 1817490, 2180988, 2423320, 2726235, 3634980, 4361976, 5452470, 7269960, 10904940, 21809880]

約数ペア:

[(1, 21809880), (2, 10904940), (3, 7269960), (4, 5452470), (5, 4361976), (6, 3634980), (8, 2726235), (9, 2423320), (10, 2180988), (12, 1817490), (15, 1453992), (18, 1211660), (20, 1090494), (24, 908745), (30, 726996), (36, 605830), (40, 545247), (45, 484664), (47, 464040), (60, 363498), (72, 302915), (90, 242332), (94, 232020), (120, 181749), (141, 154680), (180, 121166), (188, 116010), (235, 92808), (282, 77340), (360, 60583), (376, 58005), (423, 51560), (470, 46404), (564, 38670), (705, 30936), (846, 25780), (940, 23202), (1128, 19335), (1289, 16920), (1410, 15468), (1692, 12890), (1880, 11601), (2115, 10312), (2578, 8460), (2820, 7734), (3384, 6445), (3867, 5640), (4230, 5156)]