21333760

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{2381}}^1$

素因数の和:2409

約数の個数: 72

約数和(自身を含む): 58425696

約数和(自身を除く): 37091936

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 256, 280, 320, 448, 560, 640, 896, 1120, 1280, 1792, 2240, 2381, 4480, 4762, 8960, 9524, 11905, 16667, 19048, 23810, 33334, 38096, 47620, 66668, 76192, 83335, 95240, 133336, 152384, 166670, 190480, 266672, 304768, 333340, 380960, 533344, 609536, 666680, 761920, 1066688, 1333360, 1523840, 2133376, 2666720, 3047680, 4266752, 5333440, 10666880, 21333760]

約数ペア:

[(1, 21333760), (2, 10666880), (4, 5333440), (5, 4266752), (7, 3047680), (8, 2666720), (10, 2133376), (14, 1523840), (16, 1333360), (20, 1066688), (28, 761920), (32, 666680), (35, 609536), (40, 533344), (56, 380960), (64, 333340), (70, 304768), (80, 266672), (112, 190480), (128, 166670), (140, 152384), (160, 133336), (224, 95240), (256, 83335), (280, 76192), (320, 66668), (448, 47620), (560, 38096), (640, 33334), (896, 23810), (1120, 19048), (1280, 16667), (1792, 11905), (2240, 9524), (2381, 8960), (4480, 4762)]