20156191629

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{353}}^1\times {\mathrm{143107}}^1$

素因数の和:143489

約数の個数: 32

約数和(自身を含む): 32422548480

約数和(自身を除く): 12266356851

約数列:

[1, 3, 7, 19, 21, 57, 133, 353, 399, 1059, 2471, 6707, 7413, 20121, 46949, 140847, 143107, 429321, 1001749, 2719033, 3005247, 8157099, 19033231, 50516771, 57099693, 151550313, 353617397, 959818649, 1060852191, 2879455947, 6718730543, 20156191629]

約数ペア:

[(1, 20156191629), (3, 6718730543), (7, 2879455947), (19, 1060852191), (21, 959818649), (57, 353617397), (133, 151550313), (353, 57099693), (399, 50516771), (1059, 19033231), (2471, 8157099), (6707, 3005247), (7413, 2719033), (20121, 1001749), (46949, 429321), (140847, 143107)]