213281385

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{241}}^1\times {\mathrm{1439}}^1$

素因数の和:1729

約数の個数: 32

約数和(自身を含む): 351267840

約数和(自身を除く): 137986455

約数列:

[1, 3, 5, 15, 41, 123, 205, 241, 615, 723, 1205, 1439, 3615, 4317, 7195, 9881, 21585, 29643, 49405, 58999, 148215, 176997, 294995, 346799, 884985, 1040397, 1733995, 5201985, 14218759, 42656277, 71093795, 213281385]

約数ペア:

[(1, 213281385), (3, 71093795), (5, 42656277), (15, 14218759), (41, 5201985), (123, 1733995), (205, 1040397), (241, 884985), (615, 346799), (723, 294995), (1205, 176997), (1439, 148215), (3615, 58999), (4317, 49405), (7195, 29643), (9881, 21585)]