638115741

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{1087}}^1\times {\mathrm{3433}}^1$

素因数の和:4545

約数の個数: 24

約数和(自身を含む): 971409920

約数和(自身を除く): 333294179

約数列:

[1, 3, 9, 19, 57, 171, 1087, 3261, 3433, 9783, 10299, 20653, 30897, 61959, 65227, 185877, 195681, 587043, 3731671, 11195013, 33585039, 70901749, 212705247, 638115741]

約数ペア:

[(1, 638115741), (3, 212705247), (9, 70901749), (19, 33585039), (57, 11195013), (171, 3731671), (1087, 587043), (3261, 195681), (3433, 185877), (9783, 65227), (10299, 61959), (20653, 30897)]