21086814

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{263}}^1$

素因数の和:381

約数の個数: 64

約数和(自身を含む): 51093504

約数和(自身を除く): 30006690

約数列:

[1, 2, 3, 6, 7, 14, 21, 23, 42, 46, 69, 83, 138, 161, 166, 249, 263, 322, 483, 498, 526, 581, 789, 966, 1162, 1578, 1743, 1841, 1909, 3486, 3682, 3818, 5523, 5727, 6049, 11046, 11454, 12098, 13363, 18147, 21829, 26726, 36294, 40089, 42343, 43658, 65487, 80178, 84686, 127029, 130974, 152803, 254058, 305606, 458409, 502067, 916818, 1004134, 1506201, 3012402, 3514469, 7028938, 10543407, 21086814]

約数ペア:

[(1, 21086814), (2, 10543407), (3, 7028938), (6, 3514469), (7, 3012402), (14, 1506201), (21, 1004134), (23, 916818), (42, 502067), (46, 458409), (69, 305606), (83, 254058), (138, 152803), (161, 130974), (166, 127029), (249, 84686), (263, 80178), (322, 65487), (483, 43658), (498, 42343), (526, 40089), (581, 36294), (789, 26726), (966, 21829), (1162, 18147), (1578, 13363), (1743, 12098), (1841, 11454), (1909, 11046), (3486, 6049), (3682, 5727), (3818, 5523)]