21184384

素因数分解:

$2^7\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{439}}^1$

素因数の和:495

約数の個数: 64

約数和(自身を含む): 47124000

約数和(自身を除く): 25939616

約数列:

[1, 2, 4, 8, 13, 16, 26, 29, 32, 52, 58, 64, 104, 116, 128, 208, 232, 377, 416, 439, 464, 754, 832, 878, 928, 1508, 1664, 1756, 1856, 3016, 3512, 3712, 5707, 6032, 7024, 11414, 12064, 12731, 14048, 22828, 24128, 25462, 28096, 45656, 48256, 50924, 56192, 91312, 101848, 165503, 182624, 203696, 331006, 365248, 407392, 662012, 730496, 814784, 1324024, 1629568, 2648048, 5296096, 10592192, 21184384]

約数ペア:

[(1, 21184384), (2, 10592192), (4, 5296096), (8, 2648048), (13, 1629568), (16, 1324024), (26, 814784), (29, 730496), (32, 662012), (52, 407392), (58, 365248), (64, 331006), (104, 203696), (116, 182624), (128, 165503), (208, 101848), (232, 91312), (377, 56192), (416, 50924), (439, 48256), (464, 45656), (754, 28096), (832, 25462), (878, 24128), (928, 22828), (1508, 14048), (1664, 12731), (1756, 12064), (1856, 11414), (3016, 7024), (3512, 6032), (3712, 5707)]