20753964

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{7487}}^1$

素因数の和:7515

約数の個数: 72

約数和(自身を含む): 65415168

約数和(自身を除く): 44661204

約数列:

[1, 2, 3, 4, 6, 7, 9, 11, 12, 14, 18, 21, 22, 28, 33, 36, 42, 44, 63, 66, 77, 84, 99, 126, 132, 154, 198, 231, 252, 308, 396, 462, 693, 924, 1386, 2772, 7487, 14974, 22461, 29948, 44922, 52409, 67383, 82357, 89844, 104818, 134766, 157227, 164714, 209636, 247071, 269532, 314454, 329428, 471681, 494142, 576499, 628908, 741213, 943362, 988284, 1152998, 1482426, 1729497, 1886724, 2305996, 2964852, 3458994, 5188491, 6917988, 10376982, 20753964]

約数ペア:

[(1, 20753964), (2, 10376982), (3, 6917988), (4, 5188491), (6, 3458994), (7, 2964852), (9, 2305996), (11, 1886724), (12, 1729497), (14, 1482426), (18, 1152998), (21, 988284), (22, 943362), (28, 741213), (33, 628908), (36, 576499), (42, 494142), (44, 471681), (63, 329428), (66, 314454), (77, 269532), (84, 247071), (99, 209636), (126, 164714), (132, 157227), (154, 134766), (198, 104818), (231, 89844), (252, 82357), (308, 67383), (396, 52409), (462, 44922), (693, 29948), (924, 22461), (1386, 14974), (2772, 7487)]