21565026

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{5521}}^1$

素因数の和:5567

約数の個数: 48

約数和(自身を含む): 55131648

約数和(自身を除く): 33566622

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 31, 42, 62, 63, 93, 126, 186, 217, 279, 434, 558, 651, 1302, 1953, 3906, 5521, 11042, 16563, 33126, 38647, 49689, 77294, 99378, 115941, 171151, 231882, 342302, 347823, 513453, 695646, 1026906, 1198057, 1540359, 2396114, 3080718, 3594171, 7188342, 10782513, 21565026]

約数ペア:

[(1, 21565026), (2, 10782513), (3, 7188342), (6, 3594171), (7, 3080718), (9, 2396114), (14, 1540359), (18, 1198057), (21, 1026906), (31, 695646), (42, 513453), (62, 347823), (63, 342302), (93, 231882), (126, 171151), (186, 115941), (217, 99378), (279, 77294), (434, 49689), (558, 38647), (651, 33126), (1302, 16563), (1953, 11042), (3906, 5521)]