21616770

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{1303}}^1$

素因数の和:1399

約数の個数: 64

約数和(自身を含む): 60088320

約数和(自身を除く): 38471550

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 79, 105, 158, 210, 237, 395, 474, 553, 790, 1106, 1185, 1303, 1659, 2370, 2606, 2765, 3318, 3909, 5530, 6515, 7818, 8295, 9121, 13030, 16590, 18242, 19545, 27363, 39090, 45605, 54726, 91210, 102937, 136815, 205874, 273630, 308811, 514685, 617622, 720559, 1029370, 1441118, 1544055, 2161677, 3088110, 3602795, 4323354, 7205590, 10808385, 21616770]

約数ペア:

[(1, 21616770), (2, 10808385), (3, 7205590), (5, 4323354), (6, 3602795), (7, 3088110), (10, 2161677), (14, 1544055), (15, 1441118), (21, 1029370), (30, 720559), (35, 617622), (42, 514685), (70, 308811), (79, 273630), (105, 205874), (158, 136815), (210, 102937), (237, 91210), (395, 54726), (474, 45605), (553, 39090), (790, 27363), (1106, 19545), (1185, 18242), (1303, 16590), (1659, 13030), (2370, 9121), (2606, 8295), (2765, 7818), (3318, 6515), (3909, 5530)]