21971808

素因数分解:

$2^5\times 3^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{107}}^1$

素因数の和:177

約数の個数: 144

約数和(自身を含む): 67931136

約数和(自身を除く): 45959328

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 23, 24, 31, 32, 36, 46, 48, 62, 69, 72, 92, 93, 96, 107, 124, 138, 144, 184, 186, 207, 214, 248, 276, 279, 288, 321, 368, 372, 414, 428, 496, 552, 558, 642, 713, 736, 744, 828, 856, 963, 992, 1104, 1116, 1284, 1426, 1488, 1656, 1712, 1926, 2139, 2208, 2232, 2461, 2568, 2852, 2976, 3312, 3317, 3424, 3852, 4278, 4464, 4922, 5136, 5704, 6417, 6624, 6634, 7383, 7704, 8556, 8928, 9844, 9951, 10272, 11408, 12834, 13268, 14766, 15408, 17112, 19688, 19902, 22149, 22816, 25668, 26536, 29532, 29853, 30816, 34224, 39376, 39804, 44298, 51336, 53072, 59064, 59706, 68448, 76291, 78752, 79608, 88596, 102672, 106144, 118128, 119412, 152582, 159216, 177192, 205344, 228873, 236256, 238824, 305164, 318432, 354384, 457746, 477648, 610328, 686619, 708768, 915492, 955296, 1220656, 1373238, 1830984, 2441312, 2746476, 3661968, 5492952, 7323936, 10985904, 21971808]

約数ペア:

[(1, 21971808), (2, 10985904), (3, 7323936), (4, 5492952), (6, 3661968), (8, 2746476), (9, 2441312), (12, 1830984), (16, 1373238), (18, 1220656), (23, 955296), (24, 915492), (31, 708768), (32, 686619), (36, 610328), (46, 477648), (48, 457746), (62, 354384), (69, 318432), (72, 305164), (92, 238824), (93, 236256), (96, 228873), (107, 205344), (124, 177192), (138, 159216), (144, 152582), (184, 119412), (186, 118128), (207, 106144), (214, 102672), (248, 88596), (276, 79608), (279, 78752), (288, 76291), (321, 68448), (368, 59706), (372, 59064), (414, 53072), (428, 51336), (496, 44298), (552, 39804), (558, 39376), (642, 34224), (713, 30816), (736, 29853), (744, 29532), (828, 26536), (856, 25668), (963, 22816), (992, 22149), (1104, 19902), (1116, 19688), (1284, 17112), (1426, 15408), (1488, 14766), (1656, 13268), (1712, 12834), (1926, 11408), (2139, 10272), (2208, 9951), (2232, 9844), (2461, 8928), (2568, 8556), (2852, 7704), (2976, 7383), (3312, 6634), (3317, 6624), (3424, 6417), (3852, 5704), (4278, 5136), (4464, 4922)]