21780330

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{5077}}^1$

素因数の和:5111

約数の個数: 64

約数和(自身を含む): 61423488

約数和(自身を除く): 39643158

約数列:

[1, 2, 3, 5, 6, 10, 11, 13, 15, 22, 26, 30, 33, 39, 55, 65, 66, 78, 110, 130, 143, 165, 195, 286, 330, 390, 429, 715, 858, 1430, 2145, 4290, 5077, 10154, 15231, 25385, 30462, 50770, 55847, 66001, 76155, 111694, 132002, 152310, 167541, 198003, 279235, 330005, 335082, 396006, 558470, 660010, 726011, 837705, 990015, 1452022, 1675410, 1980030, 2178033, 3630055, 4356066, 7260110, 10890165, 21780330]

約数ペア:

[(1, 21780330), (2, 10890165), (3, 7260110), (5, 4356066), (6, 3630055), (10, 2178033), (11, 1980030), (13, 1675410), (15, 1452022), (22, 990015), (26, 837705), (30, 726011), (33, 660010), (39, 558470), (55, 396006), (65, 335082), (66, 330005), (78, 279235), (110, 198003), (130, 167541), (143, 152310), (165, 132002), (195, 111694), (286, 76155), (330, 66001), (390, 55847), (429, 50770), (715, 30462), (858, 25385), (1430, 15231), (2145, 10154), (4290, 5077)]