19313931

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{263}}^1\times {\mathrm{269}}^1$

素因数の和:555

約数の個数: 32

約数和(自身を含む): 31933440

約数和(自身を除く): 12619509

約数列:

[1, 3, 7, 13, 21, 39, 91, 263, 269, 273, 789, 807, 1841, 1883, 3419, 3497, 5523, 5649, 10257, 10491, 23933, 24479, 70747, 71799, 73437, 212241, 495229, 919711, 1485687, 2759133, 6437977, 19313931]

約数ペア:

[(1, 19313931), (3, 6437977), (7, 2759133), (13, 1485687), (21, 919711), (39, 495229), (91, 212241), (263, 73437), (269, 71799), (273, 70747), (789, 24479), (807, 23933), (1841, 10491), (1883, 10257), (3419, 5649), (3497, 5523)]