28283031

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{149}}^1$

素因数の和:316

約数の個数: 48

約数和(自身を含む): 49420800

約数和(自身を除く): 21137769

約数列:

[1, 3, 7, 9, 21, 23, 63, 69, 131, 149, 161, 207, 393, 447, 483, 917, 1043, 1179, 1341, 1449, 2751, 3013, 3129, 3427, 8253, 9039, 9387, 10281, 19519, 21091, 23989, 27117, 30843, 58557, 63273, 71967, 136633, 175671, 189819, 215901, 409899, 448937, 1229697, 1346811, 3142559, 4040433, 9427677, 28283031]

約数ペア:

[(1, 28283031), (3, 9427677), (7, 4040433), (9, 3142559), (21, 1346811), (23, 1229697), (63, 448937), (69, 409899), (131, 215901), (149, 189819), (161, 175671), (207, 136633), (393, 71967), (447, 63273), (483, 58557), (917, 30843), (1043, 27117), (1179, 23989), (1341, 21091), (1449, 19519), (2751, 10281), (3013, 9387), (3129, 9039), (3427, 8253)]