21518754

素因数分解:

$2^1\times 3^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{283}}^1$

素因数の和:359

約数の個数: 64

約数和(自身を含む): 49075200

約数和(自身を除く): 27556446

約数列:

[1, 2, 3, 6, 19, 23, 29, 38, 46, 57, 58, 69, 87, 114, 138, 174, 283, 437, 551, 566, 667, 849, 874, 1102, 1311, 1334, 1653, 1698, 2001, 2622, 3306, 4002, 5377, 6509, 8207, 10754, 12673, 13018, 16131, 16414, 19527, 24621, 25346, 32262, 38019, 39054, 49242, 76038, 123671, 155933, 188761, 247342, 311866, 371013, 377522, 467799, 566283, 742026, 935598, 1132566, 3586459, 7172918, 10759377, 21518754]

約数ペア:

[(1, 21518754), (2, 10759377), (3, 7172918), (6, 3586459), (19, 1132566), (23, 935598), (29, 742026), (38, 566283), (46, 467799), (57, 377522), (58, 371013), (69, 311866), (87, 247342), (114, 188761), (138, 155933), (174, 123671), (283, 76038), (437, 49242), (551, 39054), (566, 38019), (667, 32262), (849, 25346), (874, 24621), (1102, 19527), (1311, 16414), (1334, 16131), (1653, 13018), (1698, 12673), (2001, 10754), (2622, 8207), (3306, 6509), (4002, 5377)]