1921375323

素因数分解:

$3^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{178351}}^1$

素因数の和:178389

約数の個数: 40

約数和(自身を含む): 3452894720

約数和(自身を除く): 1531519397

約数列:

[1, 3, 7, 9, 19, 21, 27, 57, 63, 81, 133, 171, 189, 399, 513, 567, 1197, 1539, 3591, 10773, 178351, 535053, 1248457, 1605159, 3388669, 3745371, 4815477, 10166007, 11236113, 14446431, 23720683, 30498021, 33708339, 71162049, 91494063, 101125017, 213486147, 274482189, 640458441, 1921375323]

約数ペア:

[(1, 1921375323), (3, 640458441), (7, 274482189), (9, 213486147), (19, 101125017), (21, 91494063), (27, 71162049), (57, 33708339), (63, 30498021), (81, 23720683), (133, 14446431), (171, 11236113), (189, 10166007), (399, 4815477), (513, 3745371), (567, 3388669), (1197, 1605159), (1539, 1248457), (3591, 535053), (10773, 178351)]