21701538

素因数分解:

$2^1\times 3^2\times {\mathrm{181}}^1\times {\mathrm{6661}}^1$

素因数の和:6850

約数の個数: 24

約数和(自身を含む): 47286876

約数和(自身を除く): 25585338

約数列:

[1, 2, 3, 6, 9, 18, 181, 362, 543, 1086, 1629, 3258, 6661, 13322, 19983, 39966, 59949, 119898, 1205641, 2411282, 3616923, 7233846, 10850769, 21701538]

約数ペア:

[(1, 21701538), (2, 10850769), (3, 7233846), (6, 3616923), (9, 2411282), (18, 1205641), (181, 119898), (362, 59949), (543, 39966), (1086, 19983), (1629, 13322), (3258, 6661)]