21056328

素因数分解:

$2^3\times 3^3\times {\mathrm{71}}^1\times {\mathrm{1373}}^1$

素因数の和:1459

約数の個数: 64

約数和(自身を含む): 59356800

約数和(自身を除く): 38300472

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 71, 72, 108, 142, 213, 216, 284, 426, 568, 639, 852, 1278, 1373, 1704, 1917, 2556, 2746, 3834, 4119, 5112, 5492, 7668, 8238, 10984, 12357, 15336, 16476, 24714, 32952, 37071, 49428, 74142, 97483, 98856, 148284, 194966, 292449, 296568, 389932, 584898, 779864, 877347, 1169796, 1754694, 2339592, 2632041, 3509388, 5264082, 7018776, 10528164, 21056328]

約数ペア:

[(1, 21056328), (2, 10528164), (3, 7018776), (4, 5264082), (6, 3509388), (8, 2632041), (9, 2339592), (12, 1754694), (18, 1169796), (24, 877347), (27, 779864), (36, 584898), (54, 389932), (71, 296568), (72, 292449), (108, 194966), (142, 148284), (213, 98856), (216, 97483), (284, 74142), (426, 49428), (568, 37071), (639, 32952), (852, 24714), (1278, 16476), (1373, 15336), (1704, 12357), (1917, 10984), (2556, 8238), (2746, 7668), (3834, 5492), (4119, 5112)]