21986344

素因数分解:

$2^3\times {\mathrm{19}}^2\times {\mathrm{23}}^1\times {\mathrm{331}}^1$

素因数の和:398

約数の個数: 48

約数和(自身を含む): 45537120

約数和(自身を除く): 23550776

約数列:

[1, 2, 4, 8, 19, 23, 38, 46, 76, 92, 152, 184, 331, 361, 437, 662, 722, 874, 1324, 1444, 1748, 2648, 2888, 3496, 6289, 7613, 8303, 12578, 15226, 16606, 25156, 30452, 33212, 50312, 60904, 66424, 119491, 144647, 238982, 289294, 477964, 578588, 955928, 1157176, 2748293, 5496586, 10993172, 21986344]

約数ペア:

[(1, 21986344), (2, 10993172), (4, 5496586), (8, 2748293), (19, 1157176), (23, 955928), (38, 578588), (46, 477964), (76, 289294), (92, 238982), (152, 144647), (184, 119491), (331, 66424), (361, 60904), (437, 50312), (662, 33212), (722, 30452), (874, 25156), (1324, 16606), (1444, 15226), (1748, 12578), (2648, 8303), (2888, 7613), (3496, 6289)]