19771596

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{509}}^1$

素因数の和:615

約数の個数: 72

約数和(自身を含む): 54578160

約数和(自身を除く): 34806564

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 83, 117, 156, 166, 234, 249, 332, 468, 498, 509, 747, 996, 1018, 1079, 1494, 1527, 2036, 2158, 2988, 3054, 3237, 4316, 4581, 6108, 6474, 6617, 9162, 9711, 12948, 13234, 18324, 19422, 19851, 26468, 38844, 39702, 42247, 59553, 79404, 84494, 119106, 126741, 168988, 238212, 253482, 380223, 506964, 549211, 760446, 1098422, 1520892, 1647633, 2196844, 3295266, 4942899, 6590532, 9885798, 19771596]

約数ペア:

[(1, 19771596), (2, 9885798), (3, 6590532), (4, 4942899), (6, 3295266), (9, 2196844), (12, 1647633), (13, 1520892), (18, 1098422), (26, 760446), (36, 549211), (39, 506964), (52, 380223), (78, 253482), (83, 238212), (117, 168988), (156, 126741), (166, 119106), (234, 84494), (249, 79404), (332, 59553), (468, 42247), (498, 39702), (509, 38844), (747, 26468), (996, 19851), (1018, 19422), (1079, 18324), (1494, 13234), (1527, 12948), (2036, 9711), (2158, 9162), (2988, 6617), (3054, 6474), (3237, 6108), (4316, 4581)]