21877878

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{31}}^1\times {\mathrm{37}}^1$

素因数の和:118

約数の個数: 96

約数和(自身を含む): 53756928

約数和(自身を除く): 31879050

約数列:

[1, 2, 3, 6, 11, 17, 22, 31, 33, 34, 37, 51, 62, 66, 74, 93, 102, 111, 186, 187, 222, 289, 341, 374, 407, 527, 561, 578, 629, 682, 814, 867, 1023, 1054, 1122, 1147, 1221, 1258, 1581, 1734, 1887, 2046, 2294, 2442, 3162, 3179, 3441, 3774, 5797, 6358, 6882, 6919, 8959, 9537, 10693, 11594, 12617, 13838, 17391, 17918, 19074, 19499, 20757, 21386, 25234, 26877, 32079, 34782, 37851, 38998, 41514, 53754, 58497, 64158, 75702, 98549, 116994, 117623, 197098, 214489, 235246, 295647, 331483, 352869, 428978, 591294, 643467, 662966, 705738, 994449, 1286934, 1988898, 3646313, 7292626, 10938939, 21877878]

約数ペア:

[(1, 21877878), (2, 10938939), (3, 7292626), (6, 3646313), (11, 1988898), (17, 1286934), (22, 994449), (31, 705738), (33, 662966), (34, 643467), (37, 591294), (51, 428978), (62, 352869), (66, 331483), (74, 295647), (93, 235246), (102, 214489), (111, 197098), (186, 117623), (187, 116994), (222, 98549), (289, 75702), (341, 64158), (374, 58497), (407, 53754), (527, 41514), (561, 38998), (578, 37851), (629, 34782), (682, 32079), (814, 26877), (867, 25234), (1023, 21386), (1054, 20757), (1122, 19499), (1147, 19074), (1221, 17918), (1258, 17391), (1581, 13838), (1734, 12617), (1887, 11594), (2046, 10693), (2294, 9537), (2442, 8959), (3162, 6919), (3179, 6882), (3441, 6358), (3774, 5797)]