21419008

素因数分解:

$2^{10}\times {\mathrm{13}}^1\times {\mathrm{1609}}^1$

素因数の和:1642

約数の個数: 44

約数和(自身を含む): 46139380

約数和(自身を除く): 24720372

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 208, 256, 416, 512, 832, 1024, 1609, 1664, 3218, 3328, 6436, 6656, 12872, 13312, 20917, 25744, 41834, 51488, 83668, 102976, 167336, 205952, 334672, 411904, 669344, 823808, 1338688, 1647616, 2677376, 5354752, 10709504, 21419008]

約数ペア:

[(1, 21419008), (2, 10709504), (4, 5354752), (8, 2677376), (13, 1647616), (16, 1338688), (26, 823808), (32, 669344), (52, 411904), (64, 334672), (104, 205952), (128, 167336), (208, 102976), (256, 83668), (416, 51488), (512, 41834), (832, 25744), (1024, 20917), (1609, 13312), (1664, 12872), (3218, 6656), (3328, 6436)]