21382736

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{127}}^1\times {\mathrm{619}}^1$

素因数の和:771

約数の個数: 40

約数和(自身を含む): 44282880

約数和(自身を除く): 22900144

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 127, 136, 254, 272, 508, 619, 1016, 1238, 2032, 2159, 2476, 4318, 4952, 8636, 9904, 10523, 17272, 21046, 34544, 42092, 78613, 84184, 157226, 168368, 314452, 628904, 1257808, 1336421, 2672842, 5345684, 10691368, 21382736]

約数ペア:

[(1, 21382736), (2, 10691368), (4, 5345684), (8, 2672842), (16, 1336421), (17, 1257808), (34, 628904), (68, 314452), (127, 168368), (136, 157226), (254, 84184), (272, 78613), (508, 42092), (619, 34544), (1016, 21046), (1238, 17272), (2032, 10523), (2159, 9904), (2476, 8636), (4318, 4952)]