21880352

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{353}}^1$

素因数の和:525

約数の個数: 48

約数和(自身を含む): 46834200

約数和(自身を除く): 24953848

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 149, 208, 298, 353, 416, 596, 706, 1192, 1412, 1937, 2384, 2824, 3874, 4589, 4768, 5648, 7748, 9178, 11296, 15496, 18356, 30992, 36712, 52597, 61984, 73424, 105194, 146848, 210388, 420776, 683761, 841552, 1367522, 1683104, 2735044, 5470088, 10940176, 21880352]

約数ペア:

[(1, 21880352), (2, 10940176), (4, 5470088), (8, 2735044), (13, 1683104), (16, 1367522), (26, 841552), (32, 683761), (52, 420776), (104, 210388), (149, 146848), (208, 105194), (298, 73424), (353, 61984), (416, 52597), (596, 36712), (706, 30992), (1192, 18356), (1412, 15496), (1937, 11296), (2384, 9178), (2824, 7748), (3874, 5648), (4589, 4768)]