21374848

素因数分解:

$2^7\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1$

素因数の和:108

約数の個数: 128

約数和(自身を含む): 52876800

約数和(自身を除く): 31501952

約数列:

[1, 2, 4, 8, 11, 16, 17, 19, 22, 32, 34, 38, 44, 47, 64, 68, 76, 88, 94, 128, 136, 152, 176, 187, 188, 209, 272, 304, 323, 352, 374, 376, 418, 517, 544, 608, 646, 704, 748, 752, 799, 836, 893, 1034, 1088, 1216, 1292, 1408, 1496, 1504, 1598, 1672, 1786, 2068, 2176, 2432, 2584, 2992, 3008, 3196, 3344, 3553, 3572, 4136, 5168, 5984, 6016, 6392, 6688, 7106, 7144, 8272, 8789, 9823, 10336, 11968, 12784, 13376, 14212, 14288, 15181, 16544, 17578, 19646, 20672, 23936, 25568, 26752, 28424, 28576, 30362, 33088, 35156, 39292, 41344, 51136, 56848, 57152, 60724, 66176, 70312, 78584, 102272, 113696, 114304, 121448, 140624, 157168, 166991, 227392, 242896, 281248, 314336, 333982, 454784, 485792, 562496, 628672, 667964, 971584, 1124992, 1257344, 1335928, 1943168, 2671856, 5343712, 10687424, 21374848]

約数ペア:

[(1, 21374848), (2, 10687424), (4, 5343712), (8, 2671856), (11, 1943168), (16, 1335928), (17, 1257344), (19, 1124992), (22, 971584), (32, 667964), (34, 628672), (38, 562496), (44, 485792), (47, 454784), (64, 333982), (68, 314336), (76, 281248), (88, 242896), (94, 227392), (128, 166991), (136, 157168), (152, 140624), (176, 121448), (187, 114304), (188, 113696), (209, 102272), (272, 78584), (304, 70312), (323, 66176), (352, 60724), (374, 57152), (376, 56848), (418, 51136), (517, 41344), (544, 39292), (608, 35156), (646, 33088), (704, 30362), (748, 28576), (752, 28424), (799, 26752), (836, 25568), (893, 23936), (1034, 20672), (1088, 19646), (1216, 17578), (1292, 16544), (1408, 15181), (1496, 14288), (1504, 14212), (1598, 13376), (1672, 12784), (1786, 11968), (2068, 10336), (2176, 9823), (2432, 8789), (2584, 8272), (2992, 7144), (3008, 7106), (3196, 6688), (3344, 6392), (3553, 6016), (3572, 5984), (4136, 5168)]