20895248

素因数分解:

$2^4\times {\mathrm{11}}^2\times {\mathrm{43}}^1\times {\mathrm{251}}^1$

素因数の和:324

約数の個数: 60

約数和(自身を含む): 45715824

約数和(自身を除く): 24820576

約数列:

[1, 2, 4, 8, 11, 16, 22, 43, 44, 86, 88, 121, 172, 176, 242, 251, 344, 473, 484, 502, 688, 946, 968, 1004, 1892, 1936, 2008, 2761, 3784, 4016, 5203, 5522, 7568, 10406, 10793, 11044, 20812, 21586, 22088, 30371, 41624, 43172, 44176, 60742, 83248, 86344, 118723, 121484, 172688, 237446, 242968, 474892, 485936, 949784, 1305953, 1899568, 2611906, 5223812, 10447624, 20895248]

約数ペア:

[(1, 20895248), (2, 10447624), (4, 5223812), (8, 2611906), (11, 1899568), (16, 1305953), (22, 949784), (43, 485936), (44, 474892), (86, 242968), (88, 237446), (121, 172688), (172, 121484), (176, 118723), (242, 86344), (251, 83248), (344, 60742), (473, 44176), (484, 43172), (502, 41624), (688, 30371), (946, 22088), (968, 21586), (1004, 20812), (1892, 11044), (1936, 10793), (2008, 10406), (2761, 7568), (3784, 5522), (4016, 5203)]