20897624

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{229}}^1$

素因数の和:324

約数の個数: 64

約数和(自身を含む): 46202400

約数和(自身を除く): 25304776

約数列:

[1, 2, 4, 8, 11, 17, 22, 34, 44, 61, 68, 88, 122, 136, 187, 229, 244, 374, 458, 488, 671, 748, 916, 1037, 1342, 1496, 1832, 2074, 2519, 2684, 3893, 4148, 5038, 5368, 7786, 8296, 10076, 11407, 13969, 15572, 20152, 22814, 27938, 31144, 42823, 45628, 55876, 85646, 91256, 111752, 153659, 171292, 237473, 307318, 342584, 474946, 614636, 949892, 1229272, 1899784, 2612203, 5224406, 10448812, 20897624]

約数ペア:

[(1, 20897624), (2, 10448812), (4, 5224406), (8, 2612203), (11, 1899784), (17, 1229272), (22, 949892), (34, 614636), (44, 474946), (61, 342584), (68, 307318), (88, 237473), (122, 171292), (136, 153659), (187, 111752), (229, 91256), (244, 85646), (374, 55876), (458, 45628), (488, 42823), (671, 31144), (748, 27938), (916, 22814), (1037, 20152), (1342, 15572), (1496, 13969), (1832, 11407), (2074, 10076), (2519, 8296), (2684, 7786), (3893, 5368), (4148, 5038)]