21273768

素因数分解:

$2^3\times 3^2\times {\mathrm{19}}^1\times {\mathrm{15551}}^1$

素因数の和:15582

約数の個数: 48

約数和(自身を含む): 60652800

約数和(自身を除く): 39379032

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 19, 24, 36, 38, 57, 72, 76, 114, 152, 171, 228, 342, 456, 684, 1368, 15551, 31102, 46653, 62204, 93306, 124408, 139959, 186612, 279918, 295469, 373224, 559836, 590938, 886407, 1119672, 1181876, 1772814, 2363752, 2659221, 3545628, 5318442, 7091256, 10636884, 21273768]

約数ペア:

[(1, 21273768), (2, 10636884), (3, 7091256), (4, 5318442), (6, 3545628), (8, 2659221), (9, 2363752), (12, 1772814), (18, 1181876), (19, 1119672), (24, 886407), (36, 590938), (38, 559836), (57, 373224), (72, 295469), (76, 279918), (114, 186612), (152, 139959), (171, 124408), (228, 93306), (342, 62204), (456, 46653), (684, 31102), (1368, 15551)]