20421553906

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{29}}^2\times {\mathrm{139}}^1\times {\mathrm{6719}}^1$

素因数の和:6931

約数の個数: 48

約数和(自身を含む): 34416345600

約数和(自身を除く): 13994791694

約数列:

[1, 2, 13, 26, 29, 58, 139, 278, 377, 754, 841, 1682, 1807, 3614, 4031, 6719, 8062, 10933, 13438, 21866, 52403, 87347, 104806, 116899, 174694, 194851, 233798, 389702, 933941, 1519687, 1867882, 2533063, 3039374, 5066126, 5650679, 11301358, 12141233, 24282466, 27084289, 54168578, 73458827, 146917654, 352095757, 704191514, 785444381, 1570888762, 10210776953, 20421553906]

約数ペア:

[(1, 20421553906), (2, 10210776953), (13, 1570888762), (26, 785444381), (29, 704191514), (58, 352095757), (139, 146917654), (278, 73458827), (377, 54168578), (754, 27084289), (841, 24282466), (1682, 12141233), (1807, 11301358), (3614, 5650679), (4031, 5066126), (6719, 3039374), (8062, 2533063), (10933, 1867882), (13438, 1519687), (21866, 933941), (52403, 389702), (87347, 233798), (104806, 194851), (116899, 174694)]