21494966

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{257}}^1$

素因数の和:380

約数の個数: 32

約数和(自身を含む): 35665920

約数和(自身を除く): 14170954

約数列:

[1, 2, 19, 31, 38, 62, 71, 142, 257, 514, 589, 1178, 1349, 2201, 2698, 4402, 4883, 7967, 9766, 15934, 18247, 36494, 41819, 83638, 151373, 302746, 346693, 565657, 693386, 1131314, 10747483, 21494966]

約数ペア:

[(1, 21494966), (2, 10747483), (19, 1131314), (31, 693386), (38, 565657), (62, 346693), (71, 302746), (142, 151373), (257, 83638), (514, 41819), (589, 36494), (1178, 18247), (1349, 15934), (2201, 9766), (2698, 7967), (4402, 4883)]