21497625597

素因数分解:

$3^1\times 7^2\times {\mathrm{79}}^1\times {\mathrm{887}}^1\times {\mathrm{2087}}^1$

素因数の和:3070

約数の個数: 48

約数和(自身を含む): 33819586560

約数和(自身を除く): 12321960963

約数列:

[1, 3, 7, 21, 49, 79, 147, 237, 553, 887, 1659, 2087, 2661, 3871, 6209, 6261, 11613, 14609, 18627, 43463, 43827, 70073, 102263, 130389, 164873, 210219, 306789, 490511, 494619, 1154111, 1471533, 1851169, 3433577, 3462333, 5553507, 8078777, 10300731, 12958183, 24236331, 38874549, 90707281, 146242351, 272121843, 438727053, 1023696457, 3071089371, 7165875199, 21497625597]

約数ペア:

[(1, 21497625597), (3, 7165875199), (7, 3071089371), (21, 1023696457), (49, 438727053), (79, 272121843), (147, 146242351), (237, 90707281), (553, 38874549), (887, 24236331), (1659, 12958183), (2087, 10300731), (2661, 8078777), (3871, 5553507), (6209, 3462333), (6261, 3433577), (11613, 1851169), (14609, 1471533), (18627, 1154111), (43463, 494619), (43827, 490511), (70073, 306789), (102263, 210219), (130389, 164873)]