20197574199

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{491}}^1\times {\mathrm{1151}}^1$

素因数の和:1697

約数の個数: 72

約数和(自身を含む): 33687373824

約数和(自身を除く): 13489799625

約数列:

[1, 3, 9, 11, 19, 33, 57, 99, 171, 209, 361, 491, 627, 1083, 1151, 1473, 1881, 3249, 3453, 3971, 4419, 5401, 9329, 10359, 11913, 12661, 16203, 21869, 27987, 35739, 37983, 48609, 65607, 83961, 102619, 113949, 177251, 196821, 240559, 307857, 415511, 531753, 565141, 721677, 923571, 1246533, 1595259, 1695423, 1949761, 2165031, 3739599, 4570621, 5086269, 5849283, 6216551, 10737679, 13711863, 17547849, 18649653, 32213037, 41135589, 55948959, 96639111, 118114469, 204015901, 354343407, 612047703, 1063030221, 1836143109, 2244174911, 6732524733, 20197574199]

約数ペア:

[(1, 20197574199), (3, 6732524733), (9, 2244174911), (11, 1836143109), (19, 1063030221), (33, 612047703), (57, 354343407), (99, 204015901), (171, 118114469), (209, 96639111), (361, 55948959), (491, 41135589), (627, 32213037), (1083, 18649653), (1151, 17547849), (1473, 13711863), (1881, 10737679), (3249, 6216551), (3453, 5849283), (3971, 5086269), (4419, 4570621), (5401, 3739599), (9329, 2165031), (10359, 1949761), (11913, 1695423), (12661, 1595259), (16203, 1246533), (21869, 923571), (27987, 721677), (35739, 565141), (37983, 531753), (48609, 415511), (65607, 307857), (83961, 240559), (102619, 196821), (113949, 177251)]