19633887

素因数分解:

$3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{131}}^1$

素因数の和:221

約数の個数: 64

約数和(自身を含む): 36664320

約数和(自身を除く): 17030433

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 61, 63, 91, 117, 131, 183, 189, 273, 351, 393, 427, 549, 793, 819, 917, 1179, 1281, 1647, 1703, 2379, 2457, 2751, 3537, 3843, 5109, 5551, 7137, 7991, 8253, 11529, 11921, 15327, 16653, 21411, 23973, 24759, 35763, 45981, 49959, 55937, 71919, 103883, 107289, 149877, 167811, 215757, 311649, 321867, 503433, 727181, 934947, 1510299, 2181543, 2804841, 6544629, 19633887]

約数ペア:

[(1, 19633887), (3, 6544629), (7, 2804841), (9, 2181543), (13, 1510299), (21, 934947), (27, 727181), (39, 503433), (61, 321867), (63, 311649), (91, 215757), (117, 167811), (131, 149877), (183, 107289), (189, 103883), (273, 71919), (351, 55937), (393, 49959), (427, 45981), (549, 35763), (793, 24759), (819, 23973), (917, 21411), (1179, 16653), (1281, 15327), (1647, 11921), (1703, 11529), (2379, 8253), (2457, 7991), (2751, 7137), (3537, 5551), (3843, 5109)]