221833985

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{521}}^1$

素因数の和:665

約数の個数: 32

約数和(自身を含む): 286239744

約数和(自身を除く): 64405759

約数列:

[1, 5, 31, 41, 67, 155, 205, 335, 521, 1271, 2077, 2605, 2747, 6355, 10385, 13735, 16151, 21361, 34907, 80755, 85157, 106805, 174535, 425785, 662191, 1082117, 1431187, 3310955, 5410585, 7155935, 44366797, 221833985]

約数ペア:

[(1, 221833985), (5, 44366797), (31, 7155935), (41, 5410585), (67, 3310955), (155, 1431187), (205, 1082117), (335, 662191), (521, 425785), (1271, 174535), (2077, 106805), (2605, 85157), (2747, 80755), (6355, 34907), (10385, 21361), (13735, 16151)]