21095520

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{619}}^1$

素因数の和:708

約数の個数: 96

約数和(自身を含む): 67495680

約数和(自身を除く): 46400160

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 71, 80, 96, 120, 142, 160, 213, 240, 284, 355, 426, 480, 568, 619, 710, 852, 1065, 1136, 1238, 1420, 1704, 1857, 2130, 2272, 2476, 2840, 3095, 3408, 3714, 4260, 4952, 5680, 6190, 6816, 7428, 8520, 9285, 9904, 11360, 12380, 14856, 17040, 18570, 19808, 24760, 29712, 34080, 37140, 43949, 49520, 59424, 74280, 87898, 99040, 131847, 148560, 175796, 219745, 263694, 297120, 351592, 439490, 527388, 659235, 703184, 878980, 1054776, 1318470, 1406368, 1757960, 2109552, 2636940, 3515920, 4219104, 5273880, 7031840, 10547760, 21095520]

約数ペア:

[(1, 21095520), (2, 10547760), (3, 7031840), (4, 5273880), (5, 4219104), (6, 3515920), (8, 2636940), (10, 2109552), (12, 1757960), (15, 1406368), (16, 1318470), (20, 1054776), (24, 878980), (30, 703184), (32, 659235), (40, 527388), (48, 439490), (60, 351592), (71, 297120), (80, 263694), (96, 219745), (120, 175796), (142, 148560), (160, 131847), (213, 99040), (240, 87898), (284, 74280), (355, 59424), (426, 49520), (480, 43949), (568, 37140), (619, 34080), (710, 29712), (852, 24760), (1065, 19808), (1136, 18570), (1238, 17040), (1420, 14856), (1704, 12380), (1857, 11360), (2130, 9904), (2272, 9285), (2476, 8520), (2840, 7428), (3095, 6816), (3408, 6190), (3714, 5680), (4260, 4952)]