21663390

素因数分解:

$2^1\times 3^1\times 5^1\times 7^2\times {\mathrm{14737}}^1$

素因数の和:14761

約数の個数: 48

約数和(自身を含む): 60484752

約数和(自身を除く): 38821362

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 49, 70, 98, 105, 147, 210, 245, 294, 490, 735, 1470, 14737, 29474, 44211, 73685, 88422, 103159, 147370, 206318, 221055, 309477, 442110, 515795, 618954, 722113, 1031590, 1444226, 1547385, 2166339, 3094770, 3610565, 4332678, 7221130, 10831695, 21663390]

約数ペア:

[(1, 21663390), (2, 10831695), (3, 7221130), (5, 4332678), (6, 3610565), (7, 3094770), (10, 2166339), (14, 1547385), (15, 1444226), (21, 1031590), (30, 722113), (35, 618954), (42, 515795), (49, 442110), (70, 309477), (98, 221055), (105, 206318), (147, 147370), (210, 103159), (245, 88422), (294, 73685), (490, 44211), (735, 29474), (1470, 14737)]