21790336

素因数分解:

$2^7\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{107}}^1$

素因数の和:201

約数の個数: 64

約数和(自身を含む): 46046880

約数和(自身を除く): 24256544

約数列:

[1, 2, 4, 8, 16, 32, 37, 43, 64, 74, 86, 107, 128, 148, 172, 214, 296, 344, 428, 592, 688, 856, 1184, 1376, 1591, 1712, 2368, 2752, 3182, 3424, 3959, 4601, 4736, 5504, 6364, 6848, 7918, 9202, 12728, 13696, 15836, 18404, 25456, 31672, 36808, 50912, 63344, 73616, 101824, 126688, 147232, 170237, 203648, 253376, 294464, 340474, 506752, 588928, 680948, 1361896, 2723792, 5447584, 10895168, 21790336]

約数ペア:

[(1, 21790336), (2, 10895168), (4, 5447584), (8, 2723792), (16, 1361896), (32, 680948), (37, 588928), (43, 506752), (64, 340474), (74, 294464), (86, 253376), (107, 203648), (128, 170237), (148, 147232), (172, 126688), (214, 101824), (296, 73616), (344, 63344), (428, 50912), (592, 36808), (688, 31672), (856, 25456), (1184, 18404), (1376, 15836), (1591, 13696), (1712, 12728), (2368, 9202), (2752, 7918), (3182, 6848), (3424, 6364), (3959, 5504), (4601, 4736)]