21157032

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1$

素因数の和:167

約数の個数: 128

約数和(自身を含む): 62092800

約数和(自身を除く): 40935768

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 19, 24, 26, 38, 39, 43, 52, 57, 76, 78, 83, 86, 104, 114, 129, 152, 156, 166, 172, 228, 247, 249, 258, 312, 332, 344, 456, 494, 498, 516, 559, 664, 741, 817, 988, 996, 1032, 1079, 1118, 1482, 1577, 1634, 1677, 1976, 1992, 2158, 2236, 2451, 2964, 3154, 3237, 3268, 3354, 3569, 4316, 4472, 4731, 4902, 5928, 6308, 6474, 6536, 6708, 7138, 8632, 9462, 9804, 10621, 10707, 12616, 12948, 13416, 14276, 18924, 19608, 20501, 21242, 21414, 25896, 28552, 31863, 37848, 41002, 42484, 42828, 46397, 61503, 63726, 67811, 82004, 84968, 85656, 92794, 123006, 127452, 135622, 139191, 164008, 185588, 203433, 246012, 254904, 271244, 278382, 371176, 406866, 492024, 542488, 556764, 813732, 881543, 1113528, 1627464, 1763086, 2644629, 3526172, 5289258, 7052344, 10578516, 21157032]

約数ペア:

[(1, 21157032), (2, 10578516), (3, 7052344), (4, 5289258), (6, 3526172), (8, 2644629), (12, 1763086), (13, 1627464), (19, 1113528), (24, 881543), (26, 813732), (38, 556764), (39, 542488), (43, 492024), (52, 406866), (57, 371176), (76, 278382), (78, 271244), (83, 254904), (86, 246012), (104, 203433), (114, 185588), (129, 164008), (152, 139191), (156, 135622), (166, 127452), (172, 123006), (228, 92794), (247, 85656), (249, 84968), (258, 82004), (312, 67811), (332, 63726), (344, 61503), (456, 46397), (494, 42828), (498, 42484), (516, 41002), (559, 37848), (664, 31863), (741, 28552), (817, 25896), (988, 21414), (996, 21242), (1032, 20501), (1079, 19608), (1118, 18924), (1482, 14276), (1577, 13416), (1634, 12948), (1677, 12616), (1976, 10707), (1992, 10621), (2158, 9804), (2236, 9462), (2451, 8632), (2964, 7138), (3154, 6708), (3237, 6536), (3268, 6474), (3354, 6308), (3569, 5928), (4316, 4902), (4472, 4731)]