21103335

素因数分解:

$3^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1579}}^1$

素因数の和:1610

約数の個数: 48

約数和(自身を含む): 41408640

約数和(自身を除く): 20305305

約数列:

[1, 3, 5, 9, 11, 15, 27, 33, 45, 55, 81, 99, 135, 165, 243, 297, 405, 495, 891, 1215, 1485, 1579, 2673, 4455, 4737, 7895, 13365, 14211, 17369, 23685, 42633, 52107, 71055, 86845, 127899, 156321, 213165, 260535, 383697, 468963, 639495, 781605, 1406889, 1918485, 2344815, 4220667, 7034445, 21103335]

約数ペア:

[(1, 21103335), (3, 7034445), (5, 4220667), (9, 2344815), (11, 1918485), (15, 1406889), (27, 781605), (33, 639495), (45, 468963), (55, 383697), (81, 260535), (99, 213165), (135, 156321), (165, 127899), (243, 86845), (297, 71055), (405, 52107), (495, 42633), (891, 23685), (1215, 17369), (1485, 14211), (1579, 13365), (2673, 7895), (4455, 4737)]