21005352

素因数分解:

$2^3\times 3^3\times {\mathrm{31}}^1\times {\mathrm{3137}}^1$

素因数の和:3183

約数の個数: 64

約数和(自身を含む): 60249600

約数和(自身を除く): 39244248

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 31, 36, 54, 62, 72, 93, 108, 124, 186, 216, 248, 279, 372, 558, 744, 837, 1116, 1674, 2232, 3137, 3348, 6274, 6696, 9411, 12548, 18822, 25096, 28233, 37644, 56466, 75288, 84699, 97247, 112932, 169398, 194494, 225864, 291741, 338796, 388988, 583482, 677592, 777976, 875223, 1166964, 1750446, 2333928, 2625669, 3500892, 5251338, 7001784, 10502676, 21005352]

約数ペア:

[(1, 21005352), (2, 10502676), (3, 7001784), (4, 5251338), (6, 3500892), (8, 2625669), (9, 2333928), (12, 1750446), (18, 1166964), (24, 875223), (27, 777976), (31, 677592), (36, 583482), (54, 388988), (62, 338796), (72, 291741), (93, 225864), (108, 194494), (124, 169398), (186, 112932), (216, 97247), (248, 84699), (279, 75288), (372, 56466), (558, 37644), (744, 28233), (837, 25096), (1116, 18822), (1674, 12548), (2232, 9411), (3137, 6696), (3348, 6274)]