193720516

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{400249}}^1$

素因数の和:400275

約数の個数: 18

約数和(自身を含む): 372632750

約数和(自身を除く): 178912234

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 400249, 800498, 1600996, 4402739, 8805478, 17610956, 48430129, 96860258, 193720516]

約数ペア:

[(1, 193720516), (2, 96860258), (4, 48430129), (11, 17610956), (22, 8805478), (44, 4402739), (121, 1600996), (242, 800498), (484, 400249)]