21086880

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{197}}^1\times {\mathrm{223}}^1$

素因数の和:438

約数の個数: 96

約数和(自身を含む): 67060224

約数和(自身を除く): 45973344

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 96, 120, 160, 197, 223, 240, 394, 446, 480, 591, 669, 788, 892, 985, 1115, 1182, 1338, 1576, 1784, 1970, 2230, 2364, 2676, 2955, 3152, 3345, 3568, 3940, 4460, 4728, 5352, 5910, 6304, 6690, 7136, 7880, 8920, 9456, 10704, 11820, 13380, 15760, 17840, 18912, 21408, 23640, 26760, 31520, 35680, 43931, 47280, 53520, 87862, 94560, 107040, 131793, 175724, 219655, 263586, 351448, 439310, 527172, 658965, 702896, 878620, 1054344, 1317930, 1405792, 1757240, 2108688, 2635860, 3514480, 4217376, 5271720, 7028960, 10543440, 21086880]

約数ペア:

[(1, 21086880), (2, 10543440), (3, 7028960), (4, 5271720), (5, 4217376), (6, 3514480), (8, 2635860), (10, 2108688), (12, 1757240), (15, 1405792), (16, 1317930), (20, 1054344), (24, 878620), (30, 702896), (32, 658965), (40, 527172), (48, 439310), (60, 351448), (80, 263586), (96, 219655), (120, 175724), (160, 131793), (197, 107040), (223, 94560), (240, 87862), (394, 53520), (446, 47280), (480, 43931), (591, 35680), (669, 31520), (788, 26760), (892, 23640), (985, 21408), (1115, 18912), (1182, 17840), (1338, 15760), (1576, 13380), (1784, 11820), (1970, 10704), (2230, 9456), (2364, 8920), (2676, 7880), (2955, 7136), (3152, 6690), (3345, 6304), (3568, 5910), (3940, 5352), (4460, 4728)]