19618929

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{227}}^1$

素因数の和:347

約数の個数: 40

約数和(自身を含む): 32443488

約数和(自身を除く): 12824559

約数列:

[1, 3, 9, 11, 27, 33, 81, 97, 99, 227, 291, 297, 681, 873, 891, 1067, 2043, 2497, 2619, 3201, 6129, 7491, 7857, 9603, 18387, 22019, 22473, 28809, 66057, 67419, 86427, 198171, 202257, 242209, 594513, 726627, 1783539, 2179881, 6539643, 19618929]

約数ペア:

[(1, 19618929), (3, 6539643), (9, 2179881), (11, 1783539), (27, 726627), (33, 594513), (81, 242209), (97, 202257), (99, 198171), (227, 86427), (291, 67419), (297, 66057), (681, 28809), (873, 22473), (891, 22019), (1067, 18387), (2043, 9603), (2497, 7857), (2619, 7491), (3201, 6129)]