21000751902

素因数分解:

$2^1\times 3^4\times {\mathrm{13}}^1\times {\mathrm{313}}^1\times {\mathrm{31859}}^1$

素因数の和:32199

約数の個数: 80

約数和(自身を含む): 50840531280

約数和(自身を除く): 29839779378

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 39, 54, 78, 81, 117, 162, 234, 313, 351, 626, 702, 939, 1053, 1878, 2106, 2817, 4069, 5634, 8138, 8451, 12207, 16902, 24414, 25353, 31859, 36621, 50706, 63718, 73242, 95577, 109863, 191154, 219726, 286731, 329589, 414167, 573462, 659178, 828334, 860193, 1242501, 1720386, 2485002, 2580579, 3727503, 5161158, 7455006, 9971867, 11182509, 19943734, 22365018, 29915601, 33547527, 59831202, 67095054, 89746803, 129634271, 179493606, 259268542, 269240409, 388902813, 538480818, 777805626, 807721227, 1166708439, 1615442454, 2333416878, 3500125317, 7000250634, 10500375951, 21000751902]

約数ペア:

[(1, 21000751902), (2, 10500375951), (3, 7000250634), (6, 3500125317), (9, 2333416878), (13, 1615442454), (18, 1166708439), (26, 807721227), (27, 777805626), (39, 538480818), (54, 388902813), (78, 269240409), (81, 259268542), (117, 179493606), (162, 129634271), (234, 89746803), (313, 67095054), (351, 59831202), (626, 33547527), (702, 29915601), (939, 22365018), (1053, 19943734), (1878, 11182509), (2106, 9971867), (2817, 7455006), (4069, 5161158), (5634, 3727503), (8138, 2580579), (8451, 2485002), (12207, 1720386), (16902, 1242501), (24414, 860193), (25353, 828334), (31859, 659178), (36621, 573462), (50706, 414167), (63718, 329589), (73242, 286731), (95577, 219726), (109863, 191154)]