21863178

素因数分解:

$2^1\times 3^2\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{601}}^1$

素因数の和:699

約数の個数: 48

約数和(自身を含む): 49585536

約数和(自身を除く): 27722358

約数列:

[1, 2, 3, 6, 9, 18, 43, 47, 86, 94, 129, 141, 258, 282, 387, 423, 601, 774, 846, 1202, 1803, 2021, 3606, 4042, 5409, 6063, 10818, 12126, 18189, 25843, 28247, 36378, 51686, 56494, 77529, 84741, 155058, 169482, 232587, 254223, 465174, 508446, 1214621, 2429242, 3643863, 7287726, 10931589, 21863178]

約数ペア:

[(1, 21863178), (2, 10931589), (3, 7287726), (6, 3643863), (9, 2429242), (18, 1214621), (43, 508446), (47, 465174), (86, 254223), (94, 232587), (129, 169482), (141, 155058), (258, 84741), (282, 77529), (387, 56494), (423, 51686), (601, 36378), (774, 28247), (846, 25843), (1202, 18189), (1803, 12126), (2021, 10818), (3606, 6063), (4042, 5409)]