21199800

素因数分解:

$2^3\times 3^1\times 5^2\times {\mathrm{89}}^1\times {\mathrm{397}}^1$

素因数の和:505

約数の個数: 96

約数和(自身を含む): 66625200

約数和(自身を除く): 45425400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 25, 30, 40, 50, 60, 75, 89, 100, 120, 150, 178, 200, 267, 300, 356, 397, 445, 534, 600, 712, 794, 890, 1068, 1191, 1335, 1588, 1780, 1985, 2136, 2225, 2382, 2670, 3176, 3560, 3970, 4450, 4764, 5340, 5955, 6675, 7940, 8900, 9528, 9925, 10680, 11910, 13350, 15880, 17800, 19850, 23820, 26700, 29775, 35333, 39700, 47640, 53400, 59550, 70666, 79400, 105999, 119100, 141332, 176665, 211998, 238200, 282664, 353330, 423996, 529995, 706660, 847992, 883325, 1059990, 1413320, 1766650, 2119980, 2649975, 3533300, 4239960, 5299950, 7066600, 10599900, 21199800]

約数ペア:

[(1, 21199800), (2, 10599900), (3, 7066600), (4, 5299950), (5, 4239960), (6, 3533300), (8, 2649975), (10, 2119980), (12, 1766650), (15, 1413320), (20, 1059990), (24, 883325), (25, 847992), (30, 706660), (40, 529995), (50, 423996), (60, 353330), (75, 282664), (89, 238200), (100, 211998), (120, 176665), (150, 141332), (178, 119100), (200, 105999), (267, 79400), (300, 70666), (356, 59550), (397, 53400), (445, 47640), (534, 39700), (600, 35333), (712, 29775), (794, 26700), (890, 23820), (1068, 19850), (1191, 17800), (1335, 15880), (1588, 13350), (1780, 11910), (1985, 10680), (2136, 9925), (2225, 9528), (2382, 8900), (2670, 7940), (3176, 6675), (3560, 5955), (3970, 5340), (4450, 4764)]