21000949020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{5072693}}^1$

素因数の和:5072731

約数の個数: 72

約数和(自身を含む): 66472582176

約数和(自身を除く): 45471633156

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 30, 36, 45, 46, 60, 69, 90, 92, 115, 138, 180, 207, 230, 276, 345, 414, 460, 690, 828, 1035, 1380, 2070, 4140, 5072693, 10145386, 15218079, 20290772, 25363465, 30436158, 45654237, 50726930, 60872316, 76090395, 91308474, 101453860, 116671939, 152180790, 182616948, 228271185, 233343878, 304361580, 350015817, 456542370, 466687756, 583359695, 700031634, 913084740, 1050047451, 1166719390, 1400063268, 1750079085, 2100094902, 2333438780, 3500158170, 4200189804, 5250237255, 7000316340, 10500474510, 21000949020]

約数ペア:

[(1, 21000949020), (2, 10500474510), (3, 7000316340), (4, 5250237255), (5, 4200189804), (6, 3500158170), (9, 2333438780), (10, 2100094902), (12, 1750079085), (15, 1400063268), (18, 1166719390), (20, 1050047451), (23, 913084740), (30, 700031634), (36, 583359695), (45, 466687756), (46, 456542370), (60, 350015817), (69, 304361580), (90, 233343878), (92, 228271185), (115, 182616948), (138, 152180790), (180, 116671939), (207, 101453860), (230, 91308474), (276, 76090395), (345, 60872316), (414, 50726930), (460, 45654237), (690, 30436158), (828, 25363465), (1035, 20290772), (1380, 15218079), (2070, 10145386), (4140, 5072693)]