18218439

素因数分解:

$3^6\times {\mathrm{67}}^1\times {\mathrm{373}}^1$

素因数の和:458

約数の個数: 28

約数和(自身を含む): 27797176

約数和(自身を除く): 9578737

約数列:

[1, 3, 9, 27, 67, 81, 201, 243, 373, 603, 729, 1119, 1809, 3357, 5427, 10071, 16281, 24991, 30213, 48843, 74973, 90639, 224919, 271917, 674757, 2024271, 6072813, 18218439]

約数ペア:

[(1, 18218439), (3, 6072813), (9, 2024271), (27, 674757), (67, 271917), (81, 224919), (201, 90639), (243, 74973), (373, 48843), (603, 30213), (729, 24991), (1119, 16281), (1809, 10071), (3357, 5427)]