21025968

素因数分解:

$2^4\times 3^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{167}}^1$

素因数の和:282

約数の個数: 80

約数和(自身を含む): 56829696

約数和(自身を除く): 35803728

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 43, 48, 61, 86, 122, 129, 167, 172, 183, 244, 258, 334, 344, 366, 488, 501, 516, 668, 688, 732, 976, 1002, 1032, 1336, 1464, 2004, 2064, 2623, 2672, 2928, 4008, 5246, 7181, 7869, 8016, 10187, 10492, 14362, 15738, 20374, 20984, 21543, 28724, 30561, 31476, 40748, 41968, 43086, 57448, 61122, 62952, 81496, 86172, 114896, 122244, 125904, 162992, 172344, 244488, 344688, 438041, 488976, 876082, 1314123, 1752164, 2628246, 3504328, 5256492, 7008656, 10512984, 21025968]

約数ペア:

[(1, 21025968), (2, 10512984), (3, 7008656), (4, 5256492), (6, 3504328), (8, 2628246), (12, 1752164), (16, 1314123), (24, 876082), (43, 488976), (48, 438041), (61, 344688), (86, 244488), (122, 172344), (129, 162992), (167, 125904), (172, 122244), (183, 114896), (244, 86172), (258, 81496), (334, 62952), (344, 61122), (366, 57448), (488, 43086), (501, 41968), (516, 40748), (668, 31476), (688, 30561), (732, 28724), (976, 21543), (1002, 20984), (1032, 20374), (1336, 15738), (1464, 14362), (2004, 10492), (2064, 10187), (2623, 8016), (2672, 7869), (2928, 7181), (4008, 5246)]