21998235

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{9109}}^1$

素因数の和:9147

約数の個数: 32

約数和(自身を含む): 41978880

約数和(自身を除く): 19980645

約数列:

[1, 3, 5, 7, 15, 21, 23, 35, 69, 105, 115, 161, 345, 483, 805, 2415, 9109, 27327, 45545, 63763, 136635, 191289, 209507, 318815, 628521, 956445, 1047535, 1466549, 3142605, 4399647, 7332745, 21998235]

約数ペア:

[(1, 21998235), (3, 7332745), (5, 4399647), (7, 3142605), (15, 1466549), (21, 1047535), (23, 956445), (35, 628521), (69, 318815), (105, 209507), (115, 191289), (161, 136635), (345, 63763), (483, 45545), (805, 27327), (2415, 9109)]