20781098

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1$

素因数の和:147

約数の個数: 64

約数和(自身を含む): 38707200

約数和(自身を除く): 17926102

約数列:

[1, 2, 13, 19, 23, 26, 31, 38, 46, 59, 62, 118, 247, 299, 403, 437, 494, 589, 598, 713, 767, 806, 874, 1121, 1178, 1357, 1426, 1534, 1829, 2242, 2714, 3658, 5681, 7657, 9269, 11362, 13547, 14573, 15314, 17641, 18538, 23777, 25783, 27094, 29146, 34751, 35282, 42067, 47554, 51566, 69502, 84134, 176111, 335179, 352222, 451763, 546871, 670358, 799273, 903526, 1093742, 1598546, 10390549, 20781098]

約数ペア:

[(1, 20781098), (2, 10390549), (13, 1598546), (19, 1093742), (23, 903526), (26, 799273), (31, 670358), (38, 546871), (46, 451763), (59, 352222), (62, 335179), (118, 176111), (247, 84134), (299, 69502), (403, 51566), (437, 47554), (494, 42067), (589, 35282), (598, 34751), (713, 29146), (767, 27094), (806, 25783), (874, 23777), (1121, 18538), (1178, 17641), (1357, 15314), (1426, 14573), (1534, 13547), (1829, 11362), (2242, 9269), (2714, 7657), (3658, 5681)]