21327670

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{1019}}^1$

素因数の和:1069

約数の個数: 64

約数和(自身を含む): 49351680

約数和(自身を除く): 28024010

約数列:

[1, 2, 5, 7, 10, 13, 14, 23, 26, 35, 46, 65, 70, 91, 115, 130, 161, 182, 230, 299, 322, 455, 598, 805, 910, 1019, 1495, 1610, 2038, 2093, 2990, 4186, 5095, 7133, 10190, 10465, 13247, 14266, 20930, 23437, 26494, 35665, 46874, 66235, 71330, 92729, 117185, 132470, 164059, 185458, 234370, 304681, 328118, 463645, 609362, 820295, 927290, 1523405, 1640590, 2132767, 3046810, 4265534, 10663835, 21327670]

約数ペア:

[(1, 21327670), (2, 10663835), (5, 4265534), (7, 3046810), (10, 2132767), (13, 1640590), (14, 1523405), (23, 927290), (26, 820295), (35, 609362), (46, 463645), (65, 328118), (70, 304681), (91, 234370), (115, 185458), (130, 164059), (161, 132470), (182, 117185), (230, 92729), (299, 71330), (322, 66235), (455, 46874), (598, 35665), (805, 26494), (910, 23437), (1019, 20930), (1495, 14266), (1610, 13247), (2038, 10465), (2093, 10190), (2990, 7133), (4186, 5095)]