19289193

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{151}}^1$

素因数の和:258

約数の個数: 48

約数和(自身を含む): 33269760

約数和(自身を除く): 13980567

約数列:

[1, 3, 7, 11, 21, 33, 49, 77, 79, 147, 151, 231, 237, 453, 539, 553, 869, 1057, 1617, 1659, 1661, 2607, 3171, 3871, 4983, 6083, 7399, 11613, 11627, 11929, 18249, 22197, 34881, 35787, 42581, 81389, 83503, 127743, 131219, 244167, 250509, 393657, 584521, 918533, 1753563, 2755599, 6429731, 19289193]

約数ペア:

[(1, 19289193), (3, 6429731), (7, 2755599), (11, 1753563), (21, 918533), (33, 584521), (49, 393657), (77, 250509), (79, 244167), (147, 131219), (151, 127743), (231, 83503), (237, 81389), (453, 42581), (539, 35787), (553, 34881), (869, 22197), (1057, 18249), (1617, 11929), (1659, 11627), (1661, 11613), (2607, 7399), (3171, 6083), (3871, 4983)]