21381777

素因数分解:

$3^2\times {\mathrm{59}}^1\times {\mathrm{67}}^1\times {\mathrm{601}}^1$

素因数の和:733

約数の個数: 24

約数和(自身を含む): 31930080

約数和(自身を除く): 10548303

約数列:

[1, 3, 9, 59, 67, 177, 201, 531, 601, 603, 1803, 3953, 5409, 11859, 35459, 35577, 40267, 106377, 120801, 319131, 362403, 2375753, 7127259, 21381777]

約数ペア:

[(1, 21381777), (3, 7127259), (9, 2375753), (59, 362403), (67, 319131), (177, 120801), (201, 106377), (531, 40267), (601, 35577), (603, 35459), (1803, 11859), (3953, 5409)]