20829964

素因数分解:

$2^2\times {\mathrm{17}}^2\times {\mathrm{37}}^1\times {\mathrm{487}}^1$

素因数の和:562

約数の個数: 36

約数和(自身を含む): 39851056

約数和(自身を除く): 19021092

約数列:

[1, 2, 4, 17, 34, 37, 68, 74, 148, 289, 487, 578, 629, 974, 1156, 1258, 1948, 2516, 8279, 10693, 16558, 18019, 21386, 33116, 36038, 42772, 72076, 140743, 281486, 306323, 562972, 612646, 1225292, 5207491, 10414982, 20829964]

約数ペア:

[(1, 20829964), (2, 10414982), (4, 5207491), (17, 1225292), (34, 612646), (37, 562972), (68, 306323), (74, 281486), (148, 140743), (289, 72076), (487, 42772), (578, 36038), (629, 33116), (974, 21386), (1156, 18019), (1258, 16558), (1948, 10693), (2516, 8279)]