216919910

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{305521}}^1$

素因数の和:305599

約数の個数: 16

約数和(自身を含む): 395956512

約数和(自身を除く): 179036602

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 305521, 611042, 1527605, 3055210, 21691991, 43383982, 108459955, 216919910]

約数ペア:

[(1, 216919910), (2, 108459955), (5, 43383982), (10, 21691991), (71, 3055210), (142, 1527605), (355, 611042), (710, 305521)]