21082930

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{1399}}^1$

素因数の和:1554

約数の個数: 32

約数和(自身を含む): 41731200

約数和(自身を除く): 20648270

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 137, 274, 685, 1370, 1399, 1507, 2798, 3014, 6995, 7535, 13990, 15070, 15389, 30778, 76945, 153890, 191663, 383326, 958315, 1916630, 2108293, 4216586, 10541465, 21082930]

約数ペア:

[(1, 21082930), (2, 10541465), (5, 4216586), (10, 2108293), (11, 1916630), (22, 958315), (55, 383326), (110, 191663), (137, 153890), (274, 76945), (685, 30778), (1370, 15389), (1399, 15070), (1507, 13990), (2798, 7535), (3014, 6995)]