20158871817

素因数分解:

$3^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{2029}}^1\times {\mathrm{6481}}^1$

素因数の和:8593

約数の個数: 32

約数和(自身を含む): 31159233280

約数和(自身を除く): 11000361463

約数列:

[1, 3, 7, 21, 73, 219, 511, 1533, 2029, 6087, 6481, 14203, 19443, 42609, 45367, 136101, 148117, 444351, 473113, 1036819, 1419339, 3110457, 3311791, 9935373, 13149949, 39449847, 92049643, 276148929, 959946277, 2879838831, 6719623939, 20158871817]

約数ペア:

[(1, 20158871817), (3, 6719623939), (7, 2879838831), (21, 959946277), (73, 276148929), (219, 92049643), (511, 39449847), (1533, 13149949), (2029, 9935373), (6087, 3311791), (6481, 3110457), (14203, 1419339), (19443, 1036819), (42609, 473113), (45367, 444351), (136101, 148117)]