217876878

素因数分解:

$2^1\times 3^4\times {\mathrm{197}}^1\times {\mathrm{6827}}^1$

素因数の和:7038

約数の個数: 40

約数和(自身を含む): 490755672

約数和(自身を除く): 272878794

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 197, 394, 591, 1182, 1773, 3546, 5319, 6827, 10638, 13654, 15957, 20481, 31914, 40962, 61443, 122886, 184329, 368658, 552987, 1105974, 1344919, 2689838, 4034757, 8069514, 12104271, 24208542, 36312813, 72625626, 108938439, 217876878]

約数ペア:

[(1, 217876878), (2, 108938439), (3, 72625626), (6, 36312813), (9, 24208542), (18, 12104271), (27, 8069514), (54, 4034757), (81, 2689838), (162, 1344919), (197, 1105974), (394, 552987), (591, 368658), (1182, 184329), (1773, 122886), (3546, 61443), (5319, 40962), (6827, 31914), (10638, 20481), (13654, 15957)]