21995904

素因数分解:

$2^7\times 3^1\times 7^3\times {\mathrm{167}}^1$

素因数の和:205

約数の個数: 128

約数和(自身を含む): 68544000

約数和(自身を除く): 46548096

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 48, 49, 56, 64, 84, 96, 98, 112, 128, 147, 167, 168, 192, 196, 224, 294, 334, 336, 343, 384, 392, 448, 501, 588, 668, 672, 686, 784, 896, 1002, 1029, 1169, 1176, 1336, 1344, 1372, 1568, 2004, 2058, 2338, 2352, 2672, 2688, 2744, 3136, 3507, 4008, 4116, 4676, 4704, 5344, 5488, 6272, 7014, 8016, 8183, 8232, 9352, 9408, 10688, 10976, 14028, 16032, 16366, 16464, 18704, 18816, 21376, 21952, 24549, 28056, 32064, 32732, 32928, 37408, 43904, 49098, 56112, 57281, 64128, 65464, 65856, 74816, 98196, 112224, 114562, 130928, 131712, 149632, 171843, 196392, 224448, 229124, 261856, 343686, 392784, 448896, 458248, 523712, 687372, 785568, 916496, 1047424, 1374744, 1571136, 1832992, 2749488, 3142272, 3665984, 5498976, 7331968, 10997952, 21995904]

約数ペア:

[(1, 21995904), (2, 10997952), (3, 7331968), (4, 5498976), (6, 3665984), (7, 3142272), (8, 2749488), (12, 1832992), (14, 1571136), (16, 1374744), (21, 1047424), (24, 916496), (28, 785568), (32, 687372), (42, 523712), (48, 458248), (49, 448896), (56, 392784), (64, 343686), (84, 261856), (96, 229124), (98, 224448), (112, 196392), (128, 171843), (147, 149632), (167, 131712), (168, 130928), (192, 114562), (196, 112224), (224, 98196), (294, 74816), (334, 65856), (336, 65464), (343, 64128), (384, 57281), (392, 56112), (448, 49098), (501, 43904), (588, 37408), (668, 32928), (672, 32732), (686, 32064), (784, 28056), (896, 24549), (1002, 21952), (1029, 21376), (1169, 18816), (1176, 18704), (1336, 16464), (1344, 16366), (1372, 16032), (1568, 14028), (2004, 10976), (2058, 10688), (2338, 9408), (2352, 9352), (2672, 8232), (2688, 8183), (2744, 8016), (3136, 7014), (3507, 6272), (4008, 5488), (4116, 5344), (4676, 4704)]