21197502

素因数分解:

$2^1\times 3^2\times {\mathrm{19}}^1\times {\mathrm{61981}}^1$

素因数の和:62008

約数の個数: 24

約数和(自身を含む): 48345960

約数和(自身を除く): 27148458

約数列:

[1, 2, 3, 6, 9, 18, 19, 38, 57, 114, 171, 342, 61981, 123962, 185943, 371886, 557829, 1115658, 1177639, 2355278, 3532917, 7065834, 10598751, 21197502]

約数ペア:

[(1, 21197502), (2, 10598751), (3, 7065834), (6, 3532917), (9, 2355278), (18, 1177639), (19, 1115658), (38, 557829), (57, 371886), (114, 185943), (171, 123962), (342, 61981)]