21721236

素因数分解:

$2^2\times 3^1\times {\mathrm{523}}^1\times {\mathrm{3461}}^1$

素因数の和:3991

約数の個数: 24

約数和(自身を含む): 50794464

約数和(自身を除く): 29073228

約数列:

[1, 2, 3, 4, 6, 12, 523, 1046, 1569, 2092, 3138, 3461, 6276, 6922, 10383, 13844, 20766, 41532, 1810103, 3620206, 5430309, 7240412, 10860618, 21721236]

約数ペア:

[(1, 21721236), (2, 10860618), (3, 7240412), (4, 5430309), (6, 3620206), (12, 1810103), (523, 41532), (1046, 20766), (1569, 13844), (2092, 10383), (3138, 6922), (3461, 6276)]