19804722

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1$

素因数の和:144

約数の個数: 96

約数和(自身を含む): 49641984

約数和(自身を除く): 29837262

約数列:

[1, 2, 3, 6, 7, 14, 21, 31, 41, 42, 49, 53, 62, 82, 93, 98, 106, 123, 147, 159, 186, 217, 246, 287, 294, 318, 371, 434, 574, 651, 742, 861, 1113, 1271, 1302, 1519, 1643, 1722, 2009, 2173, 2226, 2542, 2597, 3038, 3286, 3813, 4018, 4346, 4557, 4929, 5194, 6027, 6519, 7626, 7791, 8897, 9114, 9858, 11501, 12054, 13038, 15211, 15582, 17794, 23002, 26691, 30422, 34503, 45633, 53382, 62279, 67363, 69006, 80507, 91266, 106477, 124558, 134726, 161014, 186837, 202089, 212954, 241521, 319431, 373674, 404178, 471541, 483042, 638862, 943082, 1414623, 2829246, 3300787, 6601574, 9902361, 19804722]

約数ペア:

[(1, 19804722), (2, 9902361), (3, 6601574), (6, 3300787), (7, 2829246), (14, 1414623), (21, 943082), (31, 638862), (41, 483042), (42, 471541), (49, 404178), (53, 373674), (62, 319431), (82, 241521), (93, 212954), (98, 202089), (106, 186837), (123, 161014), (147, 134726), (159, 124558), (186, 106477), (217, 91266), (246, 80507), (287, 69006), (294, 67363), (318, 62279), (371, 53382), (434, 45633), (574, 34503), (651, 30422), (742, 26691), (861, 23002), (1113, 17794), (1271, 15582), (1302, 15211), (1519, 13038), (1643, 12054), (1722, 11501), (2009, 9858), (2173, 9114), (2226, 8897), (2542, 7791), (2597, 7626), (3038, 6519), (3286, 6027), (3813, 5194), (4018, 4929), (4346, 4557)]