212947990

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^2\times {\mathrm{22159}}^1$

素因数の和:22228

約数の個数: 24

約数和(自身を含む): 396087840

約数和(自身を除く): 183139850

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 961, 1922, 4805, 9610, 22159, 44318, 110795, 221590, 686929, 1373858, 3434645, 6869290, 21294799, 42589598, 106473995, 212947990]

約数ペア:

[(1, 212947990), (2, 106473995), (5, 42589598), (10, 21294799), (31, 6869290), (62, 3434645), (155, 1373858), (310, 686929), (961, 221590), (1922, 110795), (4805, 44318), (9610, 22159)]