20665832

素因数分解:

$2^3\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{577}}^1$

素因数の和:642

約数の個数: 48

約数和(自身を含む): 43818180

約数和(自身を除く): 23152348

約数列:

[1, 2, 4, 8, 11, 22, 37, 44, 74, 88, 121, 148, 242, 296, 407, 484, 577, 814, 968, 1154, 1628, 2308, 3256, 4477, 4616, 6347, 8954, 12694, 17908, 21349, 25388, 35816, 42698, 50776, 69817, 85396, 139634, 170792, 234839, 279268, 469678, 558536, 939356, 1878712, 2583229, 5166458, 10332916, 20665832]

約数ペア:

[(1, 20665832), (2, 10332916), (4, 5166458), (8, 2583229), (11, 1878712), (22, 939356), (37, 558536), (44, 469678), (74, 279268), (88, 234839), (121, 170792), (148, 139634), (242, 85396), (296, 69817), (407, 50776), (484, 42698), (577, 35816), (814, 25388), (968, 21349), (1154, 17908), (1628, 12694), (2308, 8954), (3256, 6347), (4477, 4616)]