201990789

素因数分解:

$3^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{3203}}^1$

素因数の和:3247

約数の個数: 72

約数和(自身を含む): 398859552

約数和(自身を除く): 196868763

約数列:

[1, 3, 7, 9, 11, 13, 21, 33, 39, 49, 63, 77, 91, 99, 117, 143, 147, 231, 273, 429, 441, 539, 637, 693, 819, 1001, 1287, 1617, 1911, 3003, 3203, 4851, 5733, 7007, 9009, 9609, 21021, 22421, 28827, 35233, 41639, 63063, 67263, 105699, 124917, 156947, 201789, 246631, 291473, 317097, 374751, 458029, 470841, 739893, 874419, 1374087, 1412523, 1726417, 2040311, 2219679, 2623257, 3206203, 4122261, 5179251, 6120933, 9618609, 15537753, 18362799, 22443421, 28855827, 67330263, 201990789]

約数ペア:

[(1, 201990789), (3, 67330263), (7, 28855827), (9, 22443421), (11, 18362799), (13, 15537753), (21, 9618609), (33, 6120933), (39, 5179251), (49, 4122261), (63, 3206203), (77, 2623257), (91, 2219679), (99, 2040311), (117, 1726417), (143, 1412523), (147, 1374087), (231, 874419), (273, 739893), (429, 470841), (441, 458029), (539, 374751), (637, 317097), (693, 291473), (819, 246631), (1001, 201789), (1287, 156947), (1617, 124917), (1911, 105699), (3003, 67263), (3203, 63063), (4851, 41639), (5733, 35233), (7007, 28827), (9009, 22421), (9609, 21021)]