30748137

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{109}}^1$

素因数の和:246

約数の個数: 48

約数和(自身を含む): 51163200

約数和(自身を除く): 20415063

約数列:

[1, 3, 7, 19, 21, 49, 57, 101, 109, 133, 147, 303, 327, 399, 707, 763, 931, 1919, 2071, 2121, 2289, 2793, 4949, 5341, 5757, 6213, 11009, 13433, 14497, 14847, 16023, 33027, 40299, 43491, 77063, 94031, 101479, 209171, 231189, 282093, 304437, 539441, 627513, 1464197, 1618323, 4392591, 10249379, 30748137]

約数ペア:

[(1, 30748137), (3, 10249379), (7, 4392591), (19, 1618323), (21, 1464197), (49, 627513), (57, 539441), (101, 304437), (109, 282093), (133, 231189), (147, 209171), (303, 101479), (327, 94031), (399, 77063), (707, 43491), (763, 40299), (931, 33027), (1919, 16023), (2071, 14847), (2121, 14497), (2289, 13433), (2793, 11009), (4949, 6213), (5341, 5757)]