20389936

素因数分解:

$2^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{10709}}^1$

素因数の和:10741

約数の個数: 40

約数和(自身を含む): 47809440

約数和(自身を除く): 27419504

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 34, 56, 68, 112, 119, 136, 238, 272, 476, 952, 1904, 10709, 21418, 42836, 74963, 85672, 149926, 171344, 182053, 299852, 364106, 599704, 728212, 1199408, 1274371, 1456424, 2548742, 2912848, 5097484, 10194968, 20389936]

約数ペア:

[(1, 20389936), (2, 10194968), (4, 5097484), (7, 2912848), (8, 2548742), (14, 1456424), (16, 1274371), (17, 1199408), (28, 728212), (34, 599704), (56, 364106), (68, 299852), (112, 182053), (119, 171344), (136, 149926), (238, 85672), (272, 74963), (476, 42836), (952, 21418), (1904, 10709)]