19166308

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{311}}^1$

素因数の和:424

約数の個数: 48

約数和(自身を含む): 40255488

約数和(自身を除く): 21089180

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 71, 124, 142, 217, 284, 311, 434, 497, 622, 868, 994, 1244, 1988, 2177, 2201, 4354, 4402, 8708, 8804, 9641, 15407, 19282, 22081, 30814, 38564, 44162, 61628, 67487, 88324, 134974, 154567, 269948, 309134, 618268, 684511, 1369022, 2738044, 4791577, 9583154, 19166308]

約数ペア:

[(1, 19166308), (2, 9583154), (4, 4791577), (7, 2738044), (14, 1369022), (28, 684511), (31, 618268), (62, 309134), (71, 269948), (124, 154567), (142, 134974), (217, 88324), (284, 67487), (311, 61628), (434, 44162), (497, 38564), (622, 30814), (868, 22081), (994, 19282), (1244, 15407), (1988, 9641), (2177, 8804), (2201, 8708), (4354, 4402)]