21586688

素因数分解:

$2^8\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1$

素因数の和:149

約数の個数: 72

約数和(自身を含む): 46137168

約数和(自身を除く): 24550480

約数列:

[1, 2, 4, 8, 16, 32, 37, 43, 53, 64, 74, 86, 106, 128, 148, 172, 212, 256, 296, 344, 424, 592, 688, 848, 1184, 1376, 1591, 1696, 1961, 2279, 2368, 2752, 3182, 3392, 3922, 4558, 4736, 5504, 6364, 6784, 7844, 9116, 9472, 11008, 12728, 13568, 15688, 18232, 25456, 31376, 36464, 50912, 62752, 72928, 84323, 101824, 125504, 145856, 168646, 203648, 251008, 291712, 337292, 407296, 502016, 583424, 674584, 1349168, 2698336, 5396672, 10793344, 21586688]

約数ペア:

[(1, 21586688), (2, 10793344), (4, 5396672), (8, 2698336), (16, 1349168), (32, 674584), (37, 583424), (43, 502016), (53, 407296), (64, 337292), (74, 291712), (86, 251008), (106, 203648), (128, 168646), (148, 145856), (172, 125504), (212, 101824), (256, 84323), (296, 72928), (344, 62752), (424, 50912), (592, 36464), (688, 31376), (848, 25456), (1184, 18232), (1376, 15688), (1591, 13568), (1696, 12728), (1961, 11008), (2279, 9472), (2368, 9116), (2752, 7844), (3182, 6784), (3392, 6364), (3922, 5504), (4558, 4736)]