20138724

素因数分解:

$2^2\times 3^2\times {\mathrm{71}}^1\times {\mathrm{7879}}^1$

素因数の和:7960

約数の個数: 36

約数和(自身を含む): 51629760

約数和(自身を除く): 31491036

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 71, 142, 213, 284, 426, 639, 852, 1278, 2556, 7879, 15758, 23637, 31516, 47274, 70911, 94548, 141822, 283644, 559409, 1118818, 1678227, 2237636, 3356454, 5034681, 6712908, 10069362, 20138724]

約数ペア:

[(1, 20138724), (2, 10069362), (3, 6712908), (4, 5034681), (6, 3356454), (9, 2237636), (12, 1678227), (18, 1118818), (36, 559409), (71, 283644), (142, 141822), (213, 94548), (284, 70911), (426, 47274), (639, 31516), (852, 23637), (1278, 15758), (2556, 7879)]