21331872

素因数分解:

$2^5\times 3^2\times {\mathrm{17}}^1\times {\mathrm{4357}}^1$

素因数の和:4390

約数の個数: 72

約数和(自身を含む): 64245636

約数和(自身を除く): 42913764

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 17, 18, 24, 32, 34, 36, 48, 51, 68, 72, 96, 102, 136, 144, 153, 204, 272, 288, 306, 408, 544, 612, 816, 1224, 1632, 2448, 4357, 4896, 8714, 13071, 17428, 26142, 34856, 39213, 52284, 69712, 74069, 78426, 104568, 139424, 148138, 156852, 209136, 222207, 296276, 313704, 418272, 444414, 592552, 627408, 666621, 888828, 1185104, 1254816, 1333242, 1777656, 2370208, 2666484, 3555312, 5332968, 7110624, 10665936, 21331872]

約数ペア:

[(1, 21331872), (2, 10665936), (3, 7110624), (4, 5332968), (6, 3555312), (8, 2666484), (9, 2370208), (12, 1777656), (16, 1333242), (17, 1254816), (18, 1185104), (24, 888828), (32, 666621), (34, 627408), (36, 592552), (48, 444414), (51, 418272), (68, 313704), (72, 296276), (96, 222207), (102, 209136), (136, 156852), (144, 148138), (153, 139424), (204, 104568), (272, 78426), (288, 74069), (306, 69712), (408, 52284), (544, 39213), (612, 34856), (816, 26142), (1224, 17428), (1632, 13071), (2448, 8714), (4357, 4896)]