21958118

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{151}}^1$

素因数の和:237

約数の個数: 64

約数和(自身を含む): 44126208

約数和(自身を除く): 22168090

約数列:

[1, 2, 7, 13, 14, 17, 26, 34, 47, 91, 94, 119, 151, 182, 221, 238, 302, 329, 442, 611, 658, 799, 1057, 1222, 1547, 1598, 1963, 2114, 2567, 3094, 3926, 4277, 5134, 5593, 7097, 8554, 10387, 11186, 13741, 14194, 17969, 20774, 27482, 33371, 35938, 49679, 66742, 72709, 92261, 99358, 120649, 145418, 184522, 233597, 241298, 467194, 645827, 844543, 1291654, 1568437, 1689086, 3136874, 10979059, 21958118]

約数ペア:

[(1, 21958118), (2, 10979059), (7, 3136874), (13, 1689086), (14, 1568437), (17, 1291654), (26, 844543), (34, 645827), (47, 467194), (91, 241298), (94, 233597), (119, 184522), (151, 145418), (182, 120649), (221, 99358), (238, 92261), (302, 72709), (329, 66742), (442, 49679), (611, 35938), (658, 33371), (799, 27482), (1057, 20774), (1222, 17969), (1547, 14194), (1598, 13741), (1963, 11186), (2114, 10387), (2567, 8554), (3094, 7097), (3926, 5593), (4277, 5134)]