18715912

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{7243}}^1$

素因数の和:7285

約数の個数: 32

約数和(自身を含む): 39117600

約数和(自身を除く): 20401688

約数列:

[1, 2, 4, 8, 17, 19, 34, 38, 68, 76, 136, 152, 323, 646, 1292, 2584, 7243, 14486, 28972, 57944, 123131, 137617, 246262, 275234, 492524, 550468, 985048, 1100936, 2339489, 4678978, 9357956, 18715912]

約数ペア:

[(1, 18715912), (2, 9357956), (4, 4678978), (8, 2339489), (17, 1100936), (19, 985048), (34, 550468), (38, 492524), (68, 275234), (76, 246262), (136, 137617), (152, 123131), (323, 57944), (646, 28972), (1292, 14486), (2584, 7243)]