207012015

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{223}}^1\times {\mathrm{421}}^1$

素因数の和:669

約数の個数: 72

約数和(自身を含む): 420271488

約数和(自身を除く): 213259473

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 49, 63, 105, 147, 223, 245, 315, 421, 441, 669, 735, 1115, 1263, 1561, 2007, 2105, 2205, 2947, 3345, 3789, 4683, 6315, 7805, 8841, 10035, 10927, 14049, 14735, 18945, 20629, 23415, 26523, 32781, 44205, 54635, 61887, 70245, 93883, 98343, 103145, 132615, 163905, 185661, 281649, 309435, 469415, 491715, 657181, 844947, 928305, 1408245, 1971543, 3285905, 4224735, 4600267, 5914629, 9857715, 13800801, 23001335, 29573145, 41402403, 69004005, 207012015]

約数ペア:

[(1, 207012015), (3, 69004005), (5, 41402403), (7, 29573145), (9, 23001335), (15, 13800801), (21, 9857715), (35, 5914629), (45, 4600267), (49, 4224735), (63, 3285905), (105, 1971543), (147, 1408245), (223, 928305), (245, 844947), (315, 657181), (421, 491715), (441, 469415), (669, 309435), (735, 281649), (1115, 185661), (1263, 163905), (1561, 132615), (2007, 103145), (2105, 98343), (2205, 93883), (2947, 70245), (3345, 61887), (3789, 54635), (4683, 44205), (6315, 32781), (7805, 26523), (8841, 23415), (10035, 20629), (10927, 18945), (14049, 14735)]