20992960996

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{577}}^1\times {\mathrm{68389}}^1$

素因数の和:68996

約数の個数: 48

約数和(自身を含む): 44272950400

約数和(自身を除く): 23279989404

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 266, 532, 577, 1154, 2308, 4039, 8078, 10963, 16156, 21926, 43852, 68389, 76741, 136778, 153482, 273556, 306964, 478723, 957446, 1299391, 1914892, 2598782, 5197564, 9095737, 18191474, 36382948, 39460453, 78920906, 157841812, 276223171, 552446342, 749748607, 1104892684, 1499497214, 2998994428, 5248240249, 10496480498, 20992960996]

約数ペア:

[(1, 20992960996), (2, 10496480498), (4, 5248240249), (7, 2998994428), (14, 1499497214), (19, 1104892684), (28, 749748607), (38, 552446342), (76, 276223171), (133, 157841812), (266, 78920906), (532, 39460453), (577, 36382948), (1154, 18191474), (2308, 9095737), (4039, 5197564), (8078, 2598782), (10963, 1914892), (16156, 1299391), (21926, 957446), (43852, 478723), (68389, 306964), (76741, 273556), (136778, 153482)]