31821219

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{379}}^1\times {\mathrm{491}}^1$

素因数の和:895

約数の個数: 24

約数和(自身を含む): 48609600

約数和(自身を除く): 16788381

約数列:

[1, 3, 9, 19, 57, 171, 379, 491, 1137, 1473, 3411, 4419, 7201, 9329, 21603, 27987, 64809, 83961, 186089, 558267, 1674801, 3535691, 10607073, 31821219]

約数ペア:

[(1, 31821219), (3, 10607073), (9, 3535691), (19, 1674801), (57, 558267), (171, 186089), (379, 83961), (491, 64809), (1137, 27987), (1473, 21603), (3411, 9329), (4419, 7201)]