207352719

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{311}}^1\times {\mathrm{557}}^1$

素因数の和:900

約数の個数: 48

約数和(自身を含む): 362119680

約数和(自身を除く): 154766961

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 311, 399, 557, 933, 1197, 1671, 2177, 2799, 3899, 5013, 5909, 6531, 10583, 11697, 17727, 19593, 31749, 35091, 41363, 53181, 74081, 95247, 124089, 173227, 222243, 372267, 519681, 666729, 1212589, 1559043, 3291313, 3637767, 9873939, 10913301, 23039191, 29621817, 69117573, 207352719]

約数ペア:

[(1, 207352719), (3, 69117573), (7, 29621817), (9, 23039191), (19, 10913301), (21, 9873939), (57, 3637767), (63, 3291313), (133, 1559043), (171, 1212589), (311, 666729), (399, 519681), (557, 372267), (933, 222243), (1197, 173227), (1671, 124089), (2177, 95247), (2799, 74081), (3899, 53181), (5013, 41363), (5909, 35091), (6531, 31749), (10583, 19593), (11697, 17727)]