81788364

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{324557}}^1$

素因数の和:324574

約数の個数: 36

約数和(自身を含む): 236278224

約数和(自身を除く): 154489860

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 324557, 649114, 973671, 1298228, 1947342, 2271899, 2921013, 3894684, 4543798, 5842026, 6815697, 9087596, 11684052, 13631394, 20447091, 27262788, 40894182, 81788364]

約数ペア:

[(1, 81788364), (2, 40894182), (3, 27262788), (4, 20447091), (6, 13631394), (7, 11684052), (9, 9087596), (12, 6815697), (14, 5842026), (18, 4543798), (21, 3894684), (28, 2921013), (36, 2271899), (42, 1947342), (63, 1298228), (84, 973671), (126, 649114), (252, 324557)]