19916730

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{5981}}^1$

素因数の和:6031

約数の個数: 48

約数和(自身を含む): 53191944

約数和(自身を除く): 33275214

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 37, 45, 74, 90, 111, 185, 222, 333, 370, 555, 666, 1110, 1665, 3330, 5981, 11962, 17943, 29905, 35886, 53829, 59810, 89715, 107658, 179430, 221297, 269145, 442594, 538290, 663891, 1106485, 1327782, 1991673, 2212970, 3319455, 3983346, 6638910, 9958365, 19916730]

約数ペア:

[(1, 19916730), (2, 9958365), (3, 6638910), (5, 3983346), (6, 3319455), (9, 2212970), (10, 1991673), (15, 1327782), (18, 1106485), (30, 663891), (37, 538290), (45, 442594), (74, 269145), (90, 221297), (111, 179430), (185, 107658), (222, 89715), (333, 59810), (370, 53829), (555, 35886), (666, 29905), (1110, 17943), (1665, 11962), (3330, 5981)]