18991332

素因数分解:

$2^2\times 3^2\times {\mathrm{131}}^1\times {\mathrm{4027}}^1$

素因数の和:4168

約数の個数: 36

約数和(自身を含む): 48384336

約数和(自身を除く): 29393004

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 131, 262, 393, 524, 786, 1179, 1572, 2358, 4027, 4716, 8054, 12081, 16108, 24162, 36243, 48324, 72486, 144972, 527537, 1055074, 1582611, 2110148, 3165222, 4747833, 6330444, 9495666, 18991332]

約数ペア:

[(1, 18991332), (2, 9495666), (3, 6330444), (4, 4747833), (6, 3165222), (9, 2110148), (12, 1582611), (18, 1055074), (36, 527537), (131, 144972), (262, 72486), (393, 48324), (524, 36243), (786, 24162), (1179, 16108), (1572, 12081), (2358, 8054), (4027, 4716)]