81997944

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{21221}}^1$

素因数の和:21260

約数の個数: 64

約数和(自身を含む): 244477440

約数和(自身を除く): 162479496

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 23, 24, 28, 42, 46, 56, 69, 84, 92, 138, 161, 168, 184, 276, 322, 483, 552, 644, 966, 1288, 1932, 3864, 21221, 42442, 63663, 84884, 127326, 148547, 169768, 254652, 297094, 445641, 488083, 509304, 594188, 891282, 976166, 1188376, 1464249, 1782564, 1952332, 2928498, 3416581, 3565128, 3904664, 5856996, 6833162, 10249743, 11713992, 13666324, 20499486, 27332648, 40998972, 81997944]

約数ペア:

[(1, 81997944), (2, 40998972), (3, 27332648), (4, 20499486), (6, 13666324), (7, 11713992), (8, 10249743), (12, 6833162), (14, 5856996), (21, 3904664), (23, 3565128), (24, 3416581), (28, 2928498), (42, 1952332), (46, 1782564), (56, 1464249), (69, 1188376), (84, 976166), (92, 891282), (138, 594188), (161, 509304), (168, 488083), (184, 445641), (276, 297094), (322, 254652), (483, 169768), (552, 148547), (644, 127326), (966, 84884), (1288, 63663), (1932, 42442), (3864, 21221)]