219399405

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{179}}^1\times {\mathrm{1993}}^1$

素因数の和:2221

約数の個数: 32

約数和(自身を含む): 361791360

約数和(自身を除く): 142391955

約数列:

[1, 3, 5, 15, 41, 123, 179, 205, 537, 615, 895, 1993, 2685, 5979, 7339, 9965, 22017, 29895, 36695, 81713, 110085, 245139, 356747, 408565, 1070241, 1225695, 1783735, 5351205, 14626627, 43879881, 73133135, 219399405]

約数ペア:

[(1, 219399405), (3, 73133135), (5, 43879881), (15, 14626627), (41, 5351205), (123, 1783735), (179, 1225695), (205, 1070241), (537, 408565), (615, 356747), (895, 245139), (1993, 110085), (2685, 81713), (5979, 36695), (7339, 29895), (9965, 22017)]