21001248

素因数分解:

$2^5\times 3^3\times {\mathrm{109}}^1\times {\mathrm{223}}^1$

素因数の和:351

約数の個数: 96

約数和(自身を含む): 62092800

約数和(自身を除く): 41091552

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 32, 36, 48, 54, 72, 96, 108, 109, 144, 216, 218, 223, 288, 327, 432, 436, 446, 654, 669, 864, 872, 892, 981, 1308, 1338, 1744, 1784, 1962, 2007, 2616, 2676, 2943, 3488, 3568, 3924, 4014, 5232, 5352, 5886, 6021, 7136, 7848, 8028, 10464, 10704, 11772, 12042, 15696, 16056, 21408, 23544, 24084, 24307, 31392, 32112, 47088, 48168, 48614, 64224, 72921, 94176, 96336, 97228, 145842, 192672, 194456, 218763, 291684, 388912, 437526, 583368, 656289, 777824, 875052, 1166736, 1312578, 1750104, 2333472, 2625156, 3500208, 5250312, 7000416, 10500624, 21001248]

約数ペア:

[(1, 21001248), (2, 10500624), (3, 7000416), (4, 5250312), (6, 3500208), (8, 2625156), (9, 2333472), (12, 1750104), (16, 1312578), (18, 1166736), (24, 875052), (27, 777824), (32, 656289), (36, 583368), (48, 437526), (54, 388912), (72, 291684), (96, 218763), (108, 194456), (109, 192672), (144, 145842), (216, 97228), (218, 96336), (223, 94176), (288, 72921), (327, 64224), (432, 48614), (436, 48168), (446, 47088), (654, 32112), (669, 31392), (864, 24307), (872, 24084), (892, 23544), (981, 21408), (1308, 16056), (1338, 15696), (1744, 12042), (1784, 11772), (1962, 10704), (2007, 10464), (2616, 8028), (2676, 7848), (2943, 7136), (3488, 6021), (3568, 5886), (3924, 5352), (4014, 5232)]