19868205

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{433}}^1$

素因数の和:490

約数の個数: 64

約数和(自身を含む): 39997440

約数和(自身を除く): 20129235

約数列:

[1, 3, 5, 7, 15, 19, 21, 23, 35, 57, 69, 95, 105, 115, 133, 161, 285, 345, 399, 433, 437, 483, 665, 805, 1299, 1311, 1995, 2165, 2185, 2415, 3031, 3059, 6495, 6555, 8227, 9093, 9177, 9959, 15155, 15295, 24681, 29877, 41135, 45465, 45885, 49795, 57589, 69713, 123405, 149385, 172767, 189221, 209139, 287945, 348565, 567663, 863835, 946105, 1045695, 1324547, 2838315, 3973641, 6622735, 19868205]

約数ペア:

[(1, 19868205), (3, 6622735), (5, 3973641), (7, 2838315), (15, 1324547), (19, 1045695), (21, 946105), (23, 863835), (35, 567663), (57, 348565), (69, 287945), (95, 209139), (105, 189221), (115, 172767), (133, 149385), (161, 123405), (285, 69713), (345, 57589), (399, 49795), (433, 45885), (437, 45465), (483, 41135), (665, 29877), (805, 24681), (1299, 15295), (1311, 15155), (1995, 9959), (2165, 9177), (2185, 9093), (2415, 8227), (3031, 6555), (3059, 6495)]