21682420

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{57059}}^1$

素因数の和:57087

約数の個数: 24

約数和(自身を含む): 47930400

約数和(自身を除く): 26247980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 57059, 114118, 228236, 285295, 570590, 1084121, 1141180, 2168242, 4336484, 5420605, 10841210, 21682420]

約数ペア:

[(1, 21682420), (2, 10841210), (4, 5420605), (5, 4336484), (10, 2168242), (19, 1141180), (20, 1084121), (38, 570590), (76, 285295), (95, 228236), (190, 114118), (380, 57059)]