21031974

素因数分解:

$2^1\times 3^4\times {\mathrm{19}}^1\times {\mathrm{6833}}^1$

素因数の和:6866

約数の個数: 40

約数和(自身を含む): 49614840

約数和(自身を除く): 28582866

約数列:

[1, 2, 3, 6, 9, 18, 19, 27, 38, 54, 57, 81, 114, 162, 171, 342, 513, 1026, 1539, 3078, 6833, 13666, 20499, 40998, 61497, 122994, 129827, 184491, 259654, 368982, 389481, 553473, 778962, 1106946, 1168443, 2336886, 3505329, 7010658, 10515987, 21031974]

約数ペア:

[(1, 21031974), (2, 10515987), (3, 7010658), (6, 3505329), (9, 2336886), (18, 1168443), (19, 1106946), (27, 778962), (38, 553473), (54, 389481), (57, 368982), (81, 259654), (114, 184491), (162, 129827), (171, 122994), (342, 61497), (513, 40998), (1026, 20499), (1539, 13666), (3078, 6833)]