21086040

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{199}}^1\times {\mathrm{883}}^1$

素因数の和:1096

約数の個数: 64

約数和(自身を含む): 63648000

約数和(自身を除く): 42561960

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 199, 398, 597, 796, 883, 995, 1194, 1592, 1766, 1990, 2388, 2649, 2985, 3532, 3980, 4415, 4776, 5298, 5970, 7064, 7960, 8830, 10596, 11940, 13245, 17660, 21192, 23880, 26490, 35320, 52980, 105960, 175717, 351434, 527151, 702868, 878585, 1054302, 1405736, 1757170, 2108604, 2635755, 3514340, 4217208, 5271510, 7028680, 10543020, 21086040]

約数ペア:

[(1, 21086040), (2, 10543020), (3, 7028680), (4, 5271510), (5, 4217208), (6, 3514340), (8, 2635755), (10, 2108604), (12, 1757170), (15, 1405736), (20, 1054302), (24, 878585), (30, 702868), (40, 527151), (60, 351434), (120, 175717), (199, 105960), (398, 52980), (597, 35320), (796, 26490), (883, 23880), (995, 21192), (1194, 17660), (1592, 13245), (1766, 11940), (1990, 10596), (2388, 8830), (2649, 7960), (2985, 7064), (3532, 5970), (3980, 5298), (4415, 4776)]