19211038

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{251}}^1$

素因数の和:349

約数の個数: 48

約数和(自身を含む): 37231488

約数和(自身を除く): 18020450

約数列:

[1, 2, 7, 11, 14, 22, 49, 71, 77, 98, 142, 154, 251, 497, 502, 539, 781, 994, 1078, 1562, 1757, 2761, 3479, 3514, 5467, 5522, 6958, 10934, 12299, 17821, 19327, 24598, 35642, 38269, 38654, 76538, 124747, 135289, 196031, 249494, 270578, 392062, 873229, 1372217, 1746458, 2744434, 9605519, 19211038]

約数ペア:

[(1, 19211038), (2, 9605519), (7, 2744434), (11, 1746458), (14, 1372217), (22, 873229), (49, 392062), (71, 270578), (77, 249494), (98, 196031), (142, 135289), (154, 124747), (251, 76538), (497, 38654), (502, 38269), (539, 35642), (781, 24598), (994, 19327), (1078, 17821), (1562, 12299), (1757, 10934), (2761, 6958), (3479, 5522), (3514, 5467)]