21531496

素因数分解:

$2^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{229}}^1$

素因数の和:338

約数の個数: 64

約数和(自身を含む): 49017600

約数和(自身を除く): 27486104

約数列:

[1, 2, 4, 7, 8, 14, 23, 28, 46, 56, 73, 92, 146, 161, 184, 229, 292, 322, 458, 511, 584, 644, 916, 1022, 1288, 1603, 1679, 1832, 2044, 3206, 3358, 4088, 5267, 6412, 6716, 10534, 11753, 12824, 13432, 16717, 21068, 23506, 33434, 36869, 42136, 47012, 66868, 73738, 94024, 117019, 133736, 147476, 234038, 294952, 384491, 468076, 768982, 936152, 1537964, 2691437, 3075928, 5382874, 10765748, 21531496]

約数ペア:

[(1, 21531496), (2, 10765748), (4, 5382874), (7, 3075928), (8, 2691437), (14, 1537964), (23, 936152), (28, 768982), (46, 468076), (56, 384491), (73, 294952), (92, 234038), (146, 147476), (161, 133736), (184, 117019), (229, 94024), (292, 73738), (322, 66868), (458, 47012), (511, 42136), (584, 36869), (644, 33434), (916, 23506), (1022, 21068), (1288, 16717), (1603, 13432), (1679, 12824), (1832, 11753), (2044, 10534), (3206, 6716), (3358, 6412), (4088, 5267)]