30821553

素因数分解:

$3^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{2861}}^1$

素因数の和:2899

約数の個数: 40

約数和(自身を含む): 55408320

約数和(自身を除く): 24586767

約数列:

[1, 3, 7, 9, 19, 21, 27, 57, 63, 81, 133, 171, 189, 399, 513, 567, 1197, 1539, 2861, 3591, 8583, 10773, 20027, 25749, 54359, 60081, 77247, 163077, 180243, 231741, 380513, 489231, 540729, 1141539, 1467693, 1622187, 3424617, 4403079, 10273851, 30821553]

約数ペア:

[(1, 30821553), (3, 10273851), (7, 4403079), (9, 3424617), (19, 1622187), (21, 1467693), (27, 1141539), (57, 540729), (63, 489231), (81, 380513), (133, 231741), (171, 180243), (189, 163077), (399, 77247), (513, 60081), (567, 54359), (1197, 25749), (1539, 20027), (2861, 10773), (3591, 8583)]