221539108

素因数分解:

$2^2\times 7^1\times {\mathrm{197}}^1\times {\mathrm{40163}}^1$

素因数の和:40371

約数の個数: 24

約数和(自身を含む): 445338432

約数和(自身を除く): 223799324

約数列:

[1, 2, 4, 7, 14, 28, 197, 394, 788, 1379, 2758, 5516, 40163, 80326, 160652, 281141, 562282, 1124564, 7912111, 15824222, 31648444, 55384777, 110769554, 221539108]

約数ペア:

[(1, 221539108), (2, 110769554), (4, 55384777), (7, 31648444), (14, 15824222), (28, 7912111), (197, 1124564), (394, 562282), (788, 281141), (1379, 160652), (2758, 80326), (5516, 40163)]