30681903

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{587}}^1$

素因数の和:747

約数の個数: 32

約数和(自身を含む): 49674240

約数和(自身を除く): 18992337

約数列:

[1, 3, 7, 19, 21, 57, 131, 133, 393, 399, 587, 917, 1761, 2489, 2751, 4109, 7467, 11153, 12327, 17423, 33459, 52269, 76897, 78071, 230691, 234213, 538279, 1461043, 1614837, 4383129, 10227301, 30681903]

約数ペア:

[(1, 30681903), (3, 10227301), (7, 4383129), (19, 1614837), (21, 1461043), (57, 538279), (131, 234213), (133, 230691), (393, 78071), (399, 76897), (587, 52269), (917, 33459), (1761, 17423), (2489, 12327), (2751, 11153), (4109, 7467)]