21029880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{173}}^1\times {\mathrm{1013}}^1$

素因数の和:1200

約数の個数: 64

約数和(自身を含む): 63516960

約数和(自身を除く): 42487080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 173, 346, 519, 692, 865, 1013, 1038, 1384, 1730, 2026, 2076, 2595, 3039, 3460, 4052, 4152, 5065, 5190, 6078, 6920, 8104, 10130, 10380, 12156, 15195, 20260, 20760, 24312, 30390, 40520, 60780, 121560, 175249, 350498, 525747, 700996, 876245, 1051494, 1401992, 1752490, 2102988, 2628735, 3504980, 4205976, 5257470, 7009960, 10514940, 21029880]

約数ペア:

[(1, 21029880), (2, 10514940), (3, 7009960), (4, 5257470), (5, 4205976), (6, 3504980), (8, 2628735), (10, 2102988), (12, 1752490), (15, 1401992), (20, 1051494), (24, 876245), (30, 700996), (40, 525747), (60, 350498), (120, 175249), (173, 121560), (346, 60780), (519, 40520), (692, 30390), (865, 24312), (1013, 20760), (1038, 20260), (1384, 15195), (1730, 12156), (2026, 10380), (2076, 10130), (2595, 8104), (3039, 6920), (3460, 6078), (4052, 5190), (4152, 5065)]