20629497

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{347}}^1$

素因数の和:525

約数の個数: 32

約数和(自身を含む): 33408000

約数和(自身を除く): 12778503

約数列:

[1, 3, 7, 19, 21, 57, 133, 149, 347, 399, 447, 1041, 1043, 2429, 2831, 3129, 6593, 7287, 8493, 19779, 19817, 46151, 51703, 59451, 138453, 155109, 361921, 982357, 1085763, 2947071, 6876499, 20629497]

約数ペア:

[(1, 20629497), (3, 6876499), (7, 2947071), (19, 1085763), (21, 982357), (57, 361921), (133, 155109), (149, 138453), (347, 59451), (399, 51703), (447, 46151), (1041, 19817), (1043, 19779), (2429, 8493), (2831, 7287), (3129, 6593)]