12990885

素因数分解:

$3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1\times {\mathrm{263}}^1$

素因数の和:397

約数の個数: 32

約数和(自身を含む): 21669120

約数和(自身を除く): 8678235

約数列:

[1, 3, 5, 15, 37, 89, 111, 185, 263, 267, 445, 555, 789, 1315, 1335, 3293, 3945, 9731, 9879, 16465, 23407, 29193, 48655, 49395, 70221, 117035, 145965, 351105, 866059, 2598177, 4330295, 12990885]

約数ペア:

[(1, 12990885), (3, 4330295), (5, 2598177), (15, 866059), (37, 351105), (89, 145965), (111, 117035), (185, 70221), (263, 49395), (267, 48655), (445, 29193), (555, 23407), (789, 16465), (1315, 9879), (1335, 9731), (3293, 3945)]