287672007

素因数分解:

$3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{223}}^1\times {\mathrm{1307}}^1$

素因数の和:1587

約数の個数: 32

約数和(自身を含む): 450035712

約数和(自身を除く): 162363705

約数列:

[1, 3, 7, 21, 47, 141, 223, 329, 669, 987, 1307, 1561, 3921, 4683, 9149, 10481, 27447, 31443, 61429, 73367, 184287, 220101, 291461, 430003, 874383, 1290009, 2040227, 6120681, 13698667, 41096001, 95890669, 287672007]

約数ペア:

[(1, 287672007), (3, 95890669), (7, 41096001), (21, 13698667), (47, 6120681), (141, 2040227), (223, 1290009), (329, 874383), (669, 430003), (987, 291461), (1307, 220101), (1561, 184287), (3921, 73367), (4683, 61429), (9149, 31443), (10481, 27447)]