28999719

素因数分解:

$3^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{3461}}^1$

素因数の和:3500

約数の個数: 36

約数和(自身を含む): 51306840

約数和(自身を除く): 22307121

約数列:

[1, 3, 7, 9, 19, 21, 49, 57, 63, 133, 147, 171, 399, 441, 931, 1197, 2793, 3461, 8379, 10383, 24227, 31149, 65759, 72681, 169589, 197277, 218043, 460313, 508767, 591831, 1380939, 1526301, 3222191, 4142817, 9666573, 28999719]

約数ペア:

[(1, 28999719), (3, 9666573), (7, 4142817), (9, 3222191), (19, 1526301), (21, 1380939), (49, 591831), (57, 508767), (63, 460313), (133, 218043), (147, 197277), (171, 169589), (399, 72681), (441, 65759), (931, 31149), (1197, 24227), (2793, 10383), (3461, 8379)]